Zscaler Outage History
Daily status observations, past incidents, and reported issue history for Zscaler.
Checking current status...
90-Day Trend
Monthly Status Summary
| Month | Issue-free days | Days Tracked | Days with Issues |
|---|---|---|---|
| August 2026 | 0% | 23 | 23 |
| July 2026 | 0% | 31 | 31 |
| June 2026 | 0% | 30 | 30 |
| May 2026 | 0% | 7 | 7 |
This percentage summarizes normalized provider-status observations by calendar day. It is not duration-based, component-weighted, or contractual uptime. See the methodology and limitations.
Daily Status (Last 91 Days)
May 25
Today
Operational
Degraded
Partial Outage
Major Outage
Maintenance
No Data
Incident History
August 2026
Scheduled Maintenance Extended - zscalertwo.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be extending the scheduled maintenance of the zscalertwo.net cloud (Asia Pacific Region) by 2 hours. As part of our standard maintenance process, all logs will be collected and available after maintenance has been completed. Please contact Zscaler Support if you have additional questions.
Scheduled Maintenance Extended - zdxcloud.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be extending the scheduled maintenance of the zdxcloud.net cloud by 2 hours. As part of our standard maintenance process, all logs will be collected and available after maintenance has been completed. Please contact Zscaler Support if you have additional questions.
Santiago I Datacenter Issue - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler has detected an issue with our Santiago I datacenter and is currently investigating the matter. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status chang...
Service Degradation on Zscaler Business Insights - admin.zscaleranalytics.net
Started:
investigating
Zscaler has identified an issue affecting the admin.zscaleranalytics.net cloud. Customers accessing Zscaler Business Insights may encounter internal UI errors, including “No Data” messages and error banners in the Workspace and Analytics/Data Explorer sections when attempting to retrieve logs or reports.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP...
Reporting and Logging Issue - zscalerthree.net
Started:
investigating
Zscaler has identified a reporting and logging issue affecting the zscalerthree.net cloud. A subset of customers may experience delays or issues with logging and reporting. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: Zscaler failed over services to a healthy no...
ZTW Cloud Connector: Intermittent ZPA Access Impact for Some VDI/AVD Users - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler is aware of and investigating an intermittent issue affecting a subset of users connecting through ZTW Cloud Connectors from VDI/AVD environments. Impacted users may be unable to access certain ZPA private applications, even though DNS resolution completes successfully.Zscaler has identified an interim mitigation to clear impacted sessions and help restore access while a permanent fix is being developed. Customers experiencing this issue should contact Zscaler Support for assistance w...
Administration UI and User Authentication Issues - zscalertwo.net
Started:
investigating
Zscaler has detected an issue with the administration UI and user authentication on its zscalertwo.net Cloud. Customers may encounter issues with Administation UI login, Authentication, User Policies, Zscaler Client Connector portal, and SCIM auto-provisioning. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be poste...
China-region ZPA App Connector connectivity issue - private.zscaler.com
Started:
investigating
Zscaler has identified an issue affecting ZPA App Connector connectivity in the China region, impacting services through the Shanghai and Beijing data centers. Affected customers may experience application access failures, including AC connection setup timeout or cannot connect to broker errors. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes a...
Datacenter Expansion San Francisco IV (SJC4) - zpatwo.net
Started:
resolved
As part of our regular expansion of capacity, we are adding ZPA Public Service Edge nodes to our existing data center in San Francisco IV (SJC4).If you restrict outbound firewall access, please ensure you have added the complete set of published IPs in the URL belowhttps://config.zscaler.com/zpatwo.net/zpaUpdate - Thu, 20 Aug 2026 17:04:14 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
ZPA connectivity issues in China region - private.zscaler.com
Started:
investigating
Zscaler is investigating an issue with its Beijing III, Shanghai I datacenter on the private.zscaler.com cloud and is currently investigating the matter. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: Root cause of this issue is attributed to a recent configuratio...
Mexico City I and Mexico City II - Data Center Issue - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com
Started:
investigating
Zscaler is investigating a network connectivity issue affecting some traffic associated with our Mexico City I and Mexico City II Data Centers. Customers may experience intermittent increases in latency and degraded performance. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will provide further updates as additional information becomes avai...
Datacenter Expansion Singapore V (SIN5) - private.zscaler.com
Started:
investigating
As part of our regular expansion of capacity, we are adding ZPA Public Service Edge nodes to our existing data center in Singapore V (SIN5).If you restrict outbound firewall access, please ensure you have added the complete set of published IPs in the URL belowhttps://config.zscaler.com/private.zscaler.com/zpa
Unexpected Changes to Data Matching and Aggregation Behavior - app.avalor.io, app.eu.avalor.io, app.aps.avalor.io
Started:
investigating
Zscaler has detected an issue with its app.avalor.io, app.eu.avalor.io, app.aps.avalor.io Cloud. Some customers may experience changes in how incoming data is matched, merged, and aggregated, which could lead to differences in normalized results, aggregated outputs, and first-seen or other derived values.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status c...
Datacenter Expansion Capetown IV (CPT4) - zpatwo.net
Started:
investigating
As part of our regular expansion of capacity, we are adding ZPA Public Service Edge nodes to our new data center in EMEA, Capetown IV (CPT4).If you restrict outbound firewall access, please ensure you have added the complete set of published IPs in the URL belowhttps://config.zscaler.com/zpatwo.net/zpa
New Datacenter Expansion Milan IV (MIL4) - zpatwo.net
Started:
investigating
As part of our regular expansion of capacity, we are adding ZPA Public Service Edge nodes to our new data center in Milan IV (MIL4).If you restrict outbound firewall access, please ensure you have added the complete set of published IPs in the URL belowhttps://config.zscaler.com/zpatwo.net/zpa
Reminder Notification for Upcoming Data Center Expansions - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zpatwo.net
Started:
investigating
Dear Customer, In accordance with the Zscaler Service Continuity Policy and as previously announced via email notification and Trust on July 1, 2026, we would like to remind you of the upcoming data center expansions at the locations listed below. These would be effective anytime on or after August 30, 2026.RegionLocationCIDRNotesAPACMumbai VI137.31.136.0/23Expansion of existing data centerAPACMumbai VI137.31.138.0/23Expansion of existing data centerAPACSingapore IV137.31.142.0/23Expansi...
Reminder Notification for Additions to HUB IP Address Ranges - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, zdxcloud.net
Started:
investigating
Dear Customer, In accordance with Zscaler Service Continuity Policy and as previously announced via Trust and email notification sent on July 1, 2026, we would like to remind you of the upcoming changes to HUB IP address ranges as listed below. The services through the new IP address range will be available anytime on or after August 30, 2026.CIDRNotes137.31.134.0/23New addition to Required Hub IP addressesPlease update your firewall policy rules and any upstream access control lists t...
Datacenter Expansion San Francisco IV (SJC4) - private.zscaler.com
Started:
investigating
Affected Datacenters or Regions: AMER, San Francisco IVClouds: private.zscaler.comDescription:As part of our regular expansion of capacity, we are adding ZPA Public Service Edge nodes to our existing data center in San Francisco IV (SJC4).If you restrict outbound firewall access, please ensure you have added the complete set of published IPs in the URL belowhttps://config.zscaler.com/private.zscaler.com/zpa
Urgent Maintenance on Singapore IV, Singapore V datacenters - zscalertwo.net, zscalerthree.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on Singapore IV, Singapore V datacenters on the zscalertwo.net and zscalerthree.net clouds. This maintenance can take up to 2 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available after maintenance is complete. Please contact Zscaler Support if you have additional questions.
Datacenter Expansion Hongkong III (HKG3) - zpatwo.net
Started:
investigating
Affected Datacenters or Regions: APAC, Hong Kong IIIClouds: zpatwo.netDescription:As part of our regular expansion of capacity, we are adding ZPA Public Service Edge nodes to our new data center in HongKong III (HKG3).If you restrict outbound firewall access, please ensure you have added the complete set of published IPs in the URL belowhttps://config.zscaler.com/private.zscaler.com/zpa
Login and UI Access Issue - app.avalor.io, app.eu.avalor.io, app.aps.avalor.io
Started:
investigating
Zscaler has identified an issue affecting the app.avalor.io, app.eu.avalor.io, and app.aps.avalor.io cloud environments. Customers may experience problems with users being unable to log in or load views within the platform.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Ca...
Reporting and Logging - Audit Logs Issue - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler is actively investigating a potential Reporting and Logging issue affecting Audit Logs that may be impacting some customers. Our teams are currently assessing the scope and cause. We will provide an update as soon as more information becomes available.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted t...
Urgent Maintenance - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance during which access to the Partner Admin UI will not be available. This maintenance can take up to 30 minutes to complete. All the logs that are collected during this period will be available after the maintenance ends.Update - Mon, 17 Aug 2026 06:53:49 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Release Upgrade for Zscaler Data Security Posture Management (DSPM) - app.zsdpc.net
Started:
resolved
Zscaler Data Posture Control (DSPM) Operations team will be performing a planned upgrade activity on Aug 17th, 2026. These service updates are applied in regional off-peak hours and should not result in any downtime for customers. Please reach out to Customer support for more information about the changes. Update - Mon, 17 Aug 2026 06:46:38 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Migrate ZPA VPN Service Edge/s from UAE-Dubai to other alternative regions. - private.zscaler.com, zpatwo.net, zpabeta.net
Started:
resolved
As AWS continues to report impairment in two Availability Zones (mec1-az2 and mec1-az3) in the AWS ME-CENTRAL-1 Region, customers with ZPA VPN Service Edge/s deployed in UAE-Dubai region are required to migrate their instances (i.e., delete and add new VPN Service Edge) to alternate regions. Zscaler has also restricted all new VPN Service Edge deployments in UAE-Dubai region until AWS services are completely restored. Customers may refer to the cloud provider’s status page for additio...
Datacenter Expansion Toronto III (YTO3) - private.zscaler.com
Started:
investigating
As part of our regular expansion of capacity, we are adding ZPA Public Service Edge nodes to our data center in Toronto III (YTO3).If you restrict outbound firewall access, please ensure you have added the complete set of published IPs in the URL belowhttps://config.zscaler.com/private.zscaler.com/zpa
Datacenter Expansion Toronto III (YTO3) - zpatwo.net
Started:
investigating
As part of our regular expansion of capacity, we are adding ZPA Public Service Edge nodes to our new data center in Toronto III (YTO3).If you restrict outbound firewall access, please ensure you have added the complete set of published IPs in the URL belowhttps://config.zscaler.com/zpatwo.net/zpa
Scheduled Maintenance Extended - zscalerthree.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be extending the scheduled maintenance of the zscalerthree.net cloud by 2 hours. As part of our standard maintenance process, all logs will be collected and available after maintenance has been completed. Please contact Zscaler Support if you have additional questions.
Scheduled Maintenance Extended - AMER Region - zscloud.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be extending the scheduled maintenance for AMER Region by 4 hours. As part of our standard maintenance process, all logs will be collected and available after maintenance has been completed. Please contact Zscaler Support if you have additional questions.
Scheduled Maintenance Extended - zscalertwo.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be extending the scheduled maintenance of the zscalertwo.net cloud by 2 hours. As part of our standard maintenance process, all logs will be collected and available after maintenance has been completed. Please contact Zscaler Support if you have additional questions.
Upcoming Data Center Expansion - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zpatwo.net
Started:
investigating
Dear Zscaler Customer,In accordance with Zscaler Service Continuity Policy and per email notification sent on August 14, 2026, we would like to notify you of the upcoming data center expansion at the location listed below. This would be available anytime on or after October 13, 2026; 60 days or more from the date the first email notification is sent.Please update your firewall policy rules and any upstream Access Control Lists (ACLs) to allow the new IP address ranges to avoid any service d...
Intermittent Failures Affecting Mobile Admin Public API Requests - zscaler.net
Started:
investigating
Zscaler is investigating an issue causing intermittent failures for the Mobile Admin Public API service on zscaler.net. Some customers may experience failures when accessing the Mobile Admin public API.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: Expired CertLate...
Zscaler Business Insight Issue - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler has identified an issue affecting Zscaler Business Insights. Impacted customers may see usernames and email addresses obfuscated in the portal and API, despite having full admin access.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Update - Sat, 15 Aug 2026 06:38:09 UT...
Reporting and Logging Issue - zscalerthree.net
Started:
investigating
Zscaler has detected an issue with its zscalerthree.net Cloud. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: The incident was caused by a software issue within the logging plane, compounded by elevated processing demand, which delayed automated recovery and resu...
Announcing withdrawal of select Linux Client Connector Debian packages - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zdxcloud.net, zpatwo.net
Started:
investigating
It was discovered recently that the expiry of a package-signing key was causing a recent set of Debian-based packages for certain Linux Client Connector versions to reject Zscaler package updates. As a result, any of the Debian installations for the Linux Client Connector versions listed below will not receive automatic upgrades of new versions starting with 4.2.2. Once that key expired, clients began treating package signatures as invalid, even for packages that were signed successfully ...
Precautionary Trust for Zscaler India Data Center Traffic Testing - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zpatwo.net
Started:
resolved
Dear Zscaler Customer,This is a precautionary trust for Zscaler's BOM6/BOM7/CCU1/DEL1/HYD1/MAA2/MAA3 data centers to test international carrier traffic optimization during a major subsea cable fault. Maintenance window,Start: 2026-08-15 00:0:00 ISTEnd: 2026-08-15 04:00 IST(i.e. 2026-08-14 18:30 - 22:30 UTC)Minimal to no service impact is expected. Update - Fri, 14 Aug 2026 22:23:10 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Planned Upgrade to Experience Center | Action Required for Eligible Customers - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zdxcloud.net, zpatwo.net, zpabeta.net, zslogin.net
Started:
investigating
Starting Sep 6, a subset of Zscaler customers are scheduled for an automatic upgrade to Experience Center, a unified console for managing Zscaler products, policies, and security analytics. This has been communicated through emails and in-product banners to this cohort.Recommended: Self-initiate the upgrade before Sep 6 to avoid disruption. Contact your Zscaler Account team or Zscaler Support to upgrade on your preferred schedule.What changes after automatic upgrade: Legacy IdP admin access ...
Intermittent Source Run Failures - app.avalor.io, app.eu.avalor.io, app.aps.avalor.io
Started:
investigating
We identified an issue that caused some source runs to fail during a limited time window. This impacted only sources that executed during the incident period.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: A platform issue in the shared ingestion workflow caused som...
Los Angeles I Datacenter Scheduled Maintenance - zscalertwo.net
Started:
resolved
Zscaler will be performing hardware maintenance in Los Angeles I (QLA1) Datacenter.Maintenance window: Start: 2026-08-13 02:00 UTC End: 2026-08-13 04:00 UTC (Local Time 2026-08-12 19:00 - 2026-08-12 21:00)Update - Thu, 13 Aug 2026 04:23:30 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
London III (LON3) Datacenter Network Maintenance - zscaler.net, zscalertwo.net, zscalerthree.net
Started:
resolved
Zscaler will be performing hardware maintenance in the London III (LON3) Datacenter.Maintenance window,Start: 2026-08-12 21:00 BSTEnd: 2026-08-12 23:00 BST(i.e. 2026-08-12 20:00 - 22:00 UTC)During the maintenance, traffic will failover to redundant devices in the same datacenter. However, intermittent connections and connection reestablishment may be observed.Update - Wed, 12 Aug 2026 21:58:26 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
New York III Datacenter Scheduled Maintenance - IPv6 Enablement - zscaler.net, zscalertwo.net, zscloud.net
Started:
resolved
Zscaler will be enabling IPv6 at our New York III (NYC3) Data Center. During the maintenance window the services through NYC3 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is August 13, 3:00 pm PDT (August 13, 22:00 UTC)End time is August 13, 9:00 pm PDT (August 14, 4:00 UTC)Update - Fri, 14 Aug 2026 03:55:24 UTCThis activity has been completed. Please contact Zs...
Milan IV Data Center Online - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Dear Zscaler Customer,You are receiving this notice in accordance with the Zscaler Service Continuity Policy.As part of our effort to enhance our Security Cloud’s robustness and performance, Zscaler will be bringing online a new Milan IV (MIL4) data center. This facility will be added to the public resolution service (Auto Geo Proximity) on August 11, 2026What if I have more questions? Contact Zscaler Support via the “Support” link at the top-right of the Zscaler Administration U.I pa...
Intermittent Login Failures for claude.ai - zscaler.net, zscloud.net
Started:
investigating
Zscaler has detected an issue with its zscaler.net, zscloud.net Cloud. Customers with an HTTP/2 Header Profile applied via a URL Control Policy may experience intermittent login failures when accessing claude.ai. The HTTP/2 profile disrupts the authentication flow, which may prevent login from completing successfully. All other traffic forwarding and policy enforcement remain unaffected.We will continue to provide updates here as the investigation progresses. For detailed updates, please...
URL Category Classification Issue - zscaler.net
Started:
investigating
Zscaler has detected an issue with its zscaler.net Cloud. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: This issue occurred due to a recent service update to the AI/ML content categorization model.Latest Update - Mon, 10 Aug 2026 09:37:00 UTCZscaler has confirmed ...
Seoul I Datacenter Issue - zscalerthree.net
Started:
investigating
Zscaler is currently investigating reports of an issue with its Seoul I datacenter. We are investigating periods of slowness, connection timeouts and/or increased latency. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status...
Update to AI/ML Content Categorization for Miscellaneous and Unknown URLs - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Context-Aware Model UpgradeTo improve classification accuracy and expand categorization coverage for URLs that are not currently categorized in the Zscaler primary database, Zscaler has updated the existing AI/ML-based content categorization capability for Miscellaneous and Unknown inline URLs. This capability is available to customers who have enabled the feature in their tenant and has been used to classify eligible inline uncategorized URLs for some time. This update introduces a more cont...
Scheduled Maintenance Extended - zscalertwo.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be extending the scheduled maintenance of the zscalertwo.net cloud by 2 hours. As part of our standard maintenance process, all logs will be collected and available after maintenance has been completed. Please contact Zscaler Support if you have additional questions.
New Datacenter Expansion Milan IV (MIL4) - private.zscaler.com
Started:
investigating
As part of our regular expansion of capacity, we are adding ZPA Public Service Edge nodes to our new data center in Milan IV (MIL4).If you restrict outbound firewall access, please ensure you have added the complete set of published IPs in the URL belowhttps://config.zscaler.com/private.zscaler.com/zpa
3rd-Party App Governance (AppTotal) Portal Issue - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler is investigating an issue affecting the 3rd-Party App Governance (AppTotal) portal. Customers may currently experience issues accessing the 3rd-Party App Governance (AppTotal) portal. The service remains operational, but portal access may be unavailable for some users.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details...
Administration UI Issue - zpatwo.net
Started:
investigating
Zscaler is currently investigating reports of issues with the administration UI on its zpatwo.net Cloud. Customers may encounter disconnections, periods of slowness or increased latency. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: The issue was caused by a temp...
Urgent Maintenance - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, zdxcloud.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance during which access to the Zscaler Management Portal for Partners and ZDX Admin Portal might not be available. This maintenance is scheduled for Thursday at 6:00 PM Pacific Time on August 6, 2026 (Friday, August 7, 2026 01:00 AM UTC), and can take up to 3 hours to complete. All logs will be collected and available after maintenance is complete. Please contact Zscaler Support if you have additional questions.
Scheduled Maintenance Extended - APAC Region - zscloud.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be extending the scheduled maintenance of the zscloud.net cloud's APAC region by 2 hours. As part of our standard maintenance process, all logs will be collected and available after maintenance has been completed. Please contact Zscaler Support if you have additional questions.
Intermittent Legacy Application Access Issues via ZPA - private.zscaler.com, zpatwo.net, zpabeta.net
Started:
investigating
Zscaler is investigating an issue with its private.zscaler.com, zpaatwo.net, and zpa beta Clouds. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: Root cause was identified as a compatibility issue introduced in a recent datapath release, which impacted connectivity...
Urgent Maintenance Activity : Browser Access/ PRA - private.zscaler.com, zpatwo.net, zpabeta.net
Started:
resolved
Zscaler is performing an urgent maintenance for ZPA client-less service. Existing clientless sessions may get briefly disconnected during this maintenance activity. Update - Thu, 06 Aug 2026 18:47:53 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Administration UI and User Authentication Issues - zscalerthree.net
Started:
investigating
Zscaler has detected an issue with the administration UI and user authentication on its zscalerthree.net Cloud. Customers may encounter issues with Administation UI login, Authentication, User Policies, Zscaler Client Connector portal, and SCIM auto-provisioning. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be pos...
Datacenter Expansion Hongkong III (HKG3) - private.zscaler.com
Started:
investigating
As part of our regular expansion of capacity, we are adding ZPA Public Service Edge nodes to our new data center in HongKong III (HKG3).If you restrict outbound firewall access, please ensure you have added the complete set of published IPs in the URL belowhttps://config.zscaler.com/private.zscaler.com/zpa
San Francisco IV (SJC4) Datacenter Network Maintenance - zscalertwo.net
Started:
resolved
Zscaler will be performing hardware maintenance in the San Francisco IV (SJC4) Datacenter.Maintenance window,Start: 2026-08-05 20:00 PDTEnd: 2026-08-05 23:00 PDT(i.e. 2026-08-06 03:00 - 06:00 UTC)During the maintenance, traffic will failover to redundant devices in the same datacenter. However, intermittent connections and connection reestablishment may be observed.Update - Thu, 06 Aug 2026 03:30:13 UTCThis activity has been completed. Please contact Zscaler Support if you have additional que...
Zscaler Client Connector (ZCC) and Admin UI Authentication Issues - zscalertwo.net
Started:
investigating
Zscaler has detected an Authentication issue with Zscaler Client Connector (ZCC) and Admin UI on its zscalertwo.net Cloud. Some users may see a “Zscaler Client Connector was unable to enroll at this time” message when trying to sign in to Zscaler Client Connector (ZCC). Users who are already signed in should continue to access services normally.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zs...
Diagnostic Logs Issue - zpatwo.net
Started:
investigating
Zscaler identified an issue affecting reporting and logging on the zpatwo.net cloud. As a result, customers may experience a disruption in diagnostic log collection.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: A logging cluster issue in the ZPA2 environment cause...
Frankfurt IV (FRA4) Datacenter Network Maintenance - zscloud.net
Started:
resolved
Zscaler will be performing hardware maintenance in the Frankfurt IV (FRA4) Datacenter.Maintenance window,Start: 2025-08-05 02:00 CESTEnd: 2025-08-05 04:00 CEST(i.e. 2025-08-05 00:00 - 02:00 UTC)During the maintenance, traffic will failover to redundant devices in the same datacenter. However, intermittent connections and connection reestablishment may be observed.Update - Wed, 05 Aug 2026 00:04:43 UTCThis activity has been completed. Please contact Zscaler Support if you have additional quest...
Administration UI Issue - zscaler.net, zdxcloud.net
Started:
investigating
Zscaler has detected an issue with the administration UI on its zscaler.net Cloud. Customers may encounter issues with Admin UI login, Zscaler Client Connector portal, and SCIM auto-provisioning.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: Issue occurred due to a...
Third-Party Vendor Incident (Snowflake) - app.avalor.io
Started:
investigating
Zscaler is aware of service impact stemming from an incident affecting our third-party vendor, Snowflake. Customers may experience disruptions with analytics and reporting capabilities that depend on Snowflake.Snowflake is actively engaged in remediation efforts. For the most current updates, please refer to Snowflake’s status page
Scheduled Maintenance Extended - zscloud.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be extending the scheduled maintenance of the zscloud.net cloud by 2 hours. As part of our standard maintenance process, all logs will be collected and available after maintenance has been completed. Please contact Zscaler Support if you have additional questions.
Additions to Zscaler Hub IP Address Ranges - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, zdxcloud.net
Started:
investigating
Dear Zscaler Customer,In accordance with Zscaler Service Continuity Policy and per email notification sent on July 31, 2026, we would like to notify you of the changes to the Zscaler Hub IP Addresses as listed below. These will be effective anytime on or after September 29, 2026; 60 days or more from the date the first email notification is sent.Please update your firewall policy rules and any upstream Access Control Lists (ACLs) to allow the new IP address ranges to avoid any service disru...
Urgent Maintenance - zscaler.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on the zscaler.net cloud. This maintenance can take up to 3 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available after maintenance is complete. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). S...
Scheduled Maintenance Extended - zscalerone.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be extending the scheduled maintenance of the zscalerone.net cloud by 2 hours. As part of our standard maintenance process, all logs will be collected and available after maintenance has been completed. Please contact Zscaler Support if you have additional questions.
Urgent Maintenance : Zero Trust Browser / Browser Access - private.zscaler.com, zpatwo.net, zpabeta.net
Started:
resolved
Zscaler is performing an urgent maintenance for ZPA client-less service. Existing clientless sessions may get briefly disconnected during this maintenance activity. Update - Sat, 01 Aug 2026 09:22:19 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
ZPA Applications inaccessibility issue within Zero Trust Browser - private.zscaler.com, zpatwo.net, zpabeta.net
Started:
investigating
Zscaler is investigating an issue with its private.zscaler.com, zpaatwo.net, and zpa beta Clouds. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: The root cause of this incident was an expired certificate on the Universal User Portal (my-apps.p.zscalerportal.net), ...
Scheduled Maintenance Extended - zscaler.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be extending the scheduled maintenance of the zscaler.net cloud by 2 hours. As part of our standard maintenance process, all logs will be collected and available after maintenance has been completed. Please contact Zscaler Support if you have additional questions.
July 2026
Administration UI and User Authentication Issues - zscalertwo.net
Started:
investigating
Zscaler has detected an issue with the administration UI and user authentication on its zscalertwo.net Cloud. Customers may encounter issues with Admin UI login, New user authentication, User Policies, Zscaler Client Connector portal, and SCIM auto-provisioning. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be post...
Reminder Notification for Upcoming Data Center Expansions - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zpatwo.net
Started:
investigating
Dear Customer, In accordance with the Zscaler Service Continuity Policy and as previously announced via email notification and Trust on June 15, 2026, we would like to remind you of the upcoming data center expansions at the locations listed below. These would be effective anytime on or after August 14, 2026.RegionLocationCIDRNotesAmericasChicago137.31.114.0/23Expansion of existing data centerAmericasChicago II137.31.116.0/23Expansion of existing data centerPlease update your firewall po...
Login and UI Access Issue - app.avalor.io, app.eu.avalor.io, app.aps.avalor.io
Started:
investigating
Zscaler has detected an issue with its app.avalor.io, app.eu.avalor.io, app.aps.avalor.io Cloud. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: Issue occurred due to a recent service update.Update - Thu, 30 Jul 2026 12:28:21 UTCZscaler has successfully implemented ...
Datacenter Expansion Kolkata I (CCU1) - private.zscaler.com
Started:
investigating
As part of our regular expansion of capacity, we are adding ZPA Public Service Edge nodes to our new data center in Kolkata I (CCU1).If you restrict outbound firewall access, please ensure you have added the complete set of published IPs in the URL belowhttps://config.zscaler.com/private.zscaler.com/zpa
Datacenter Expansion Mumbai VI (BOM6) - zpatwo.net
Started:
investigating
As part of our regular expansion of capacity, we are adding ZPA Public Service Edge nodes to our new data center in Mumbai VI (BOM6).If you restrict outbound firewall access, please ensure you have added the complete set of published IPs in the URL belowhttps://config.zscaler.com/zpatwo.net/zpa
Lagos II Datacenter Issue - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler has detected an issue with its Lagos II datacenter and is currently investigating the matter. If you’re currently experiencing any traffic impacting issues please failover to Lagos III datacenter. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details...
Opt Out of Microsoft Azure Network Adapter (MANA) for Zscaler ZPA Private Infrastructure Deployed in Microsoft Azure - private.zscaler.com, zpatwo.net, zpabeta.net
Started:
investigating
Microsoft is currently deploying the Microsoft Azure Network Adapter (MANA), a next-generation network interface included within Azure Boost, across existing Azure virtual machine (VM) size families. This deployment will replace the Mellanox ConnectX-based Accelerated Networking hardware currently utilized by ZPA App Connector, Private Service Edge, Network Connector, and Private Cloud Controller. Effective August 1, 2026, Azure may automatically transition MANA-eligible VMs to MANA-capable h...
Mumbai IV Data Center Decommissioning - zscaler.net
Started:
investigating
You are receiving this notice in accordance with the Zscaler Service Continuity Policy.Please note that the Mumbai IV (BOM4) data center will be shut down any time on or after October 21, 2026. The customers that are still connecting to BOM4 via GRE or IPSEC tunnel(s) must migrate their traffic to the new Mumbai VII (BOM7) data center. All such customers will be contacted separately with migration instructions. Other Zscaler sites and Zscaler Services will continue to operate normally.
Zscaler Mobile Admin (ZMA) Availability Issue - zscalertwo.net
Started:
investigating
Zscaler has detected an issue with the Zscaler Client Connector Portal and Zscaler Client Connector (ZCC) on its zscalertwo.net Cloud. Some users may see a “ Zscaler Client Connector was unable to enroll at this time” message when trying to sign in to Zscaler Client Connector (ZCC). Users who are already signed in should continue to access services normally.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status secti...
Mexico City II Data Center online - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Dear Zscaler Customer,You are receiving this notice in accordance with the Zscaler Service Continuity Policy.As part of our effort to enhance our Security Cloud’s robustness and performance, Zscaler will be bringing online a new Mexico City II (MEX2) data center. This facility will be added to the public resolution service (Auto Geo Proximity) on August 3, 2026What if I have more questions? Contact Zscaler Support via the “Support” link at the top-right of the Zscaler Administration U...
Administration UI and Authentication Issue - zscalertwo.net
Started:
investigating
Zscaler has detected an issue with its zscalertwo.net Cloud. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: A platform issue briefly disrupted ZIA control plane services, resulting in the impact observed during this incident window. This is a preliminary observati...
Cloud-to-Cloud Incident Forwarding and Email DLP Issue - zscloud.net
Started:
investigating
Zscaler is investigating an issue affecting cloud-to-cloud (C2C) incident forwarding and email DLP for some tenants. Customers may experience disruption to cloud-to-cloud incident forwarding across inline, endpoint, and other channels, where DLP incidents may not be captured in incident records during the impact window. Email DLP quarantine actions are also impacted, and quarantine release actions may be delayed or unavailable. Remediation actions may not execute as expected, and dashboards ...
Red Hat Enterprise Linux (RHEL) 9.x Boot Issue Impacting ZPA Components During Operating System (OS) Upgrades - private.zscaler.com, zpatwo.net, zpabeta.net
Started:
investigating
As a continuation of the previous Advisory related to RHEL 9.x Boot Issue Impacting ZPA Components During OS Upgrades, we would like to provide the following information regarding the latest progress and next steps.Zscaler is aware of a boot-related issue affecting Red Hat Enterprise Linux (RHEL) 9.x that can impact ZPA infrastructure components, and to share the steps we are taking to protect your environment. A recent Red Hat update (RHBA-2026:18665, released with RHEL 9.x on May 19, 2026) ...
Zscaler Client Connector (ZCC) and Zscaler Client Connector Portal Authentication Issues - zscalertwo.net
Started:
investigating
Zscaler has detected an Authentication issue with the Zscaler Client Connector Portal and Zscaler Client Connector (ZCC) on its zscalertwo.net Cloud. Some users may see a “Zscaler Client Connector was unable to enroll at this time” message when trying to sign in to Zscaler Client Connector (ZCC). Users who are already signed in should continue to access services normally.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Servic...
Rare Windows System Crash During Upgrade or Uninstall of Zscaler Client Connector 4.8 Builds Prior to 4.8.0.190 - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zdxcloud.net, zpatwo.net
Started:
investigating
Zscaler has identified an issue in the ZCC driver included with Windows ZCC 4.8 builds prior to 4.8.0.190. The issue may be triggered when the impacted driver is replaced or removed during a ZCC upgrade or uninstall.The condition is timing-dependent and may occur only under rare circumstances based on system activity at the time of the upgrade or uninstall. Because of this, it is not possible to predict in advance which individual endpoints may encounter the issue.Affected versions:- Zscaler ...
Data at Rest Scanning Issue - zscloud.net
Started:
investigating
Zscaler has detected an issue with its zscloud.net Cloud. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: The issue occurred due to a recent service update.Update - Sun, 19 Jul 2026 07:30:04 UTCZscaler has made the necessary changes and implemented the required meas...
Urgent maintenance on ZS1 VZEN nodes - zscalerone.net
Started:
resolved
Zscaler will be performing an urgent maintenance on the VZEN nodes in zscalerone.net cloud. The maintenance will happen across VZEN nodes during the window, beginning at 02:00 PM Pacific Time on Saturday, July 18, 2026 and continuing for up to 6 hours. VZEN's services may be restarted as part of this change and service for your end users might be disrupted during the window. All logs will be collected and available after maintenance is complete.
Required Action: Opt Out of Microsoft Azure Network Adapter (MANA) for Zscaler Cloud Connectors Deployed in Microsoft Azure - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zdxcloud.net, zpatwo.net
Started:
investigating
Microsoft is currently deploying the Microsoft Azure Network Adapter (MANA), a next-generation network interface included within Azure Boost, across existing Azure virtual machine (VM) size families. This deployment will replace the Mellanox ConnectX-based Accelerated Networking hardware currently utilized by Cloud Connector. Effective August 1, 2026, Azure may automatically transition MANA-eligible VMs to MANA-capable hardware during routine lifecycle events, unless an explicit opt-out is ...
New York IV (NYC4) Datacenter Network Maintenance - zscalertwo.net, zscloud.net
Started:
resolved
Zscaler will be performing hardware maintenance in the New York IV (NYC4) Datacenter.Maintenance window,Start: 2026-07-21 18:00 EDTEnd: 2026-07-21 21:00 EDT(i.e. 2026-07-21 22:00 - 2026-07-22 01:00 UTC)During the maintenance, traffic will failover to redundant devices in the same datacenter. However, intermittent connections and connection reestablishment may be observed.Update - Tue, 21 Jul 2026 23:37:07 UTCThis activity has been completed. Please contact Zscaler Support if you have addition...
Scheduled Maintenance Extended - zscalerone.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be extending the scheduled maintenance of the zscalerone.net cloud by 5 hour. As part of our standard maintenance process, all logs will be collected and available after maintenance has been completed. Please contact Zscaler Support if you have additional questions.
Administration UI Issue - zscaler.net
Started:
investigating
Zscaler has identified an issue affecting the Administration UI and Zscaler Client Connector Admin Portal on the zscaler.net cloud. Customers may experience issues accessing the Administration UI and the Zscaler Client Connector Admin Portal.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they becom...
New Delhi Datacenter issue - zscalerthree.net
Started:
investigating
Zscaler is currently investigating reports of an issue with its New Delhi I datacenter. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and updates wi...
Reminder Notification for Upcoming New DCs and Expansions - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zpatwo.net
Started:
investigating
Dear Customer, In accordance with the Zscaler Service Continuity Policy and as previously announced via email notification and Trust on June 1, 2026, we would like to remind you of the upcoming New DCs and expansions at the locations listed below. These would be available anytime on or after July 31, 2026.Please update your firewall policy rules and any upstream access lists to allow the new IP address ranges to avoid any service disruption.RegionLocationCIDRNotesAmericasBuenos Aires II...
Reminder Notification for Additions to HUB IP Address Ranges - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, zdxcloud.net
Started:
investigating
Dear Customer, In accordance with Zscaler Service Continuity Policy and as previously announced via Trust and email notification sent on June 1, 2026, we would like to remind you of the upcoming changes to HUB IP address ranges as listed below. The services through the new IP address range will be available anytime on or after July 31, 2026.CIDRNotes175.107.184.0/23New addition to Required Hub IP addressesPlease update your firewall policy rules and any upstream access control lists to...
Washington DC (WAS1) Datacenter Network Maintenance - zscaler.net, zscalertwo.net, zscalerthree.net
Started:
resolved
Zscaler will be performing hardware maintenance in Washington DC (WAS1) Datacenter.Scheduled Maintenance window, Start: 2026-07-17 02:00 UTC End: 2026-07-17 06:00 UTC (Local Time 2026-07-16 22:00 - 2026-07-17 02:00)Update: The maintenance window has been extended by an additional 2 hours.Update - Fri, 17 Jul 2026 05:12:26 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Zscaler Help Portal - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com
Started:
resolved
Zscaler has identified an issue affecting the Zscaler Help Portal. The root cause has been traced to an ongoing Amazon CloudFront incident. We will provide a further update as soon as more information becomes available or once the issue has been resolved.
Intermittent Login Issues with Experience Center - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zdxcloud.net, zpatwo.net, zscalerrisk.net, zslogin.net
Started:
investigating
Zscaler experienced intermittent login issues affecting the Experience Center. The issue has been mitigated, and we are continuing to monitor the service to ensure stability. During the incident window, some customers may have experienced intermittent difficulties logging in.Root Cause: A deployment-related configuration change caused intermittent login issues affecting the Experience Center.Update - Wed, 15 Jul 2026 22:22:42 UTCFollowing the actions previously taken by Zscaler, the incident ...
Reporting and Logging Issue - zscloud.net, zscalerthree.net
Started:
investigating
Zscaler is currently investigating reports of issues with Reporting and Logging on its zscloud.net, zscalerthree.net Cloud. Your organization's policies are being enforced. All user logs are being collected and will be available at the resolution of this incident. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be po...
Administration UI Issue - zscalerthree.net
Started:
investigating
Zscaler has detected an issue with the administration UI on its zscalerthree.net Cloud. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: Issue occurred due to recent service update.Latest Update - Wed, 15 Jul 2026 09:39:58 UTCFollowing the actions previously taken b...
Intermittent loss of connectivity on macOS Tahoe and Sequoia with route-based traffic interception - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zdxcloud.net, zpatwo.net
Started:
investigating
What is the issue?:The native macOS firewall on Tahoe and Sequoia can significantly delay processing and intermittently drop Zscaler Client Connector traffic after device boot-up and wake/sleep events, resulting in Zscaler Client Connector not being able to receive traffic from apps and consequently forwards traffic to the Zero Trust Exchange in route-based traffic interception mode. During this event, users receive a “Endpoint FW/AV Error” error in Zscaler Client Connector and lose conn...
ZPA Diagnostic logs Issue - private.zscaler.com
Started:
investigating
Zscaler has detected an issue with its private.zscaler.com Cloud. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: Issue occurred due to recent service update.Update - Tue, 14 Jul 2026 08:25:06 UTCZscaler has identified the root cause and implemented mitigation measu...
Degraded AgentZ Performance and Conversation History - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
We are currently investigating a potential issue were customers are experiencing 503 Service Temporarily Unavailable errors when submitting support cases via AgentZ.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: The issue was caused by an internal configuration and...
ZDX Copilot Experiencing Degraded Performance for Entity-Based Questions - zdxcloud.net
Started:
investigating
Zscaler has detected an issue with its zdxcloud.net Cloud. Customers using ZDX Copilot may experience degraded performance when submitting queries involving users, devices, applications, and other entity-based data. This may result in slower responses, incomplete results, or difficulty retrieving expected insights through Copilot.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer supp...
Website inaccessibility issue over PAC - zscaler.net
Started:
investigating
Zscaler is investigating an issue with its zscaler.net Cloud. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: Preliminary investigation suggests that the root cause is attributed to a recent change.Update - Sat, 11 Jul 2026 09:48:57 UTCZscaler has identified and re...
Zscaler Client Connector (ZCC) Device Registration Failures - zscalertwo.net, zscalerthree.net
Started:
investigating
Zscaler is aware of and investigating an issue affecting a subset of users on the zscalertwo.net and zscalerthree.net clouds who may experience device registration failures in Zscaler Client Connector (ZCC). Affected users may see a “Device Registration Failed” message with error code 3053 and may be unable to complete device registration or access services.At this time, this issue does not affect all users or all customers. Based on current findings, the impact appears to be limited to u...
Miami III Datacenter Scheduled Maintenance - IPv6 Enablement - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
resolved
Zscaler will be enabling IPv6 at our Miami III (MIA3) Data Center. During the maintenance window the services through MIA3 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is July 13, 4:00 pm PDT (July 13, 23:00 UTC)End time is July 13, 9:00 pm PDT (July 14, 4:00 UTC)Update - Tue, 14 Jul 2026 04:36:49 UTCThis activity has been completed. Please contact Zscaler Suppo...
Product Name Update: ZIdentity is now Authentication Service - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zdxcloud.net, zpatwo.net, zslogin.net
Started:
investigating
What's Changing?Zscaler is renaming ZIdentity to Authentication Service. This is a name change only, with no changes to product functionality.Why Are We Making This Change?The name Authentication Service more clearly reflects the product’s purpose as the centralized authentication and identity management service across Zscaler services.For more information, please refer to the following article: What is Authentication Service
Bogota I (BOG1) Data Center - Performance Degradation - zscalertwo.net
Started:
investigating
Zscaler is aware of and currently investigating performance degradation affecting the Bogota I (BOG1) Data Center. Customers may experience increased latency or degraded performance while accessing services through this location. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progres...
Urgent Maintenance - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, zdxcloud.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance during which access to the Zscaler Management Portal for Partners and ZDX Admin Portal might not be available. This maintenance is scheduled for Saturday at 11:00 AM Pacific Time on July 11, 2026 (Saturday, July 11, 2026 06:00 PM UTC), and can take up to 2 hours to complete. All logs will be collected and available after maintenance is complete. Please contact Zscaler Support if you have additional question...
Reporting and Logging Issue - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler is currently investigating reports of an issue affecting Reporting and Logging on the zscalerthree.net cloud. Customers may intermittently encounter errors when attempting to download Web Insights logs.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: A backen...
Tianjin Datacenter Issue - zscloud.net
Started:
investigating
Zscaler is currently investigating reports of an issue with its Tianjin datacenter. Customers may encounter disconnections, periods of slowness or increased latency. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status secti...
Datacenter Expansion New Delhi (DEL1) - private.zscaler.com
Started:
investigating
As part of our regular expansion of capacity, we are adding ZPA Public Service Edge nodes to our new data center in New Delhi I (DEL1).These would be available anytime on or after 11th July 2026.RegionLocationNotesASIANEW DELHI IOld DCThe IP addresses for the DC are part of the already published IP address range.Please update your firewall policy rules along with any upstream ACL(s) to allow the IP address ranges to avoid any service disruption.For more information, please visit:https://confi...
Changes in exclusion method for Zoom and Teams on iOS - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
As a part of Zscaler’s continuous product improvement process, we are making a change to how the built-in exclusions for Zoom and Teams work on iOS. Today these exclusions are processed inside Zscaler Client Connector (ZCC) itself, where ZCC will receive the traffic and then bypass it from tunneling. We have seen vastly improved performance with these applications by excluding this traffic pre-zcc, commonly referred to as VPN Gateway Bypass, and we will be making a change to exclude this t...
Scheduled Maintenance: Experience Center - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zdxcloud.net, zpatwo.net
Started:
resolved
Zscaler will perform scheduled maintenance for Experience Center on Jul 18, 2026, 1:00 AM to 3:00 AM UTC. During this maintenance window, the service is expected to remain available; however, users may experience brief intermittent disruptions. This maintenance is intended to improve platform reliability and performance.After the maintenance is complete, service is expected to operate normally, and no customer action is required. If you experience any issues after the maintenance window, plea...
Intermittent Failures Affecting Mobile Admin Public API Requests - zscaler.net
Started:
investigating
Zscaler is investigating an issue causing intermittent failures for the Mobile Admin Public API service on zscaler.net. Some customers may experience failures when accessing the Mobile Admin public API.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: Configuration is...
Dubai II Data Center Issue - zscloud.net
Started:
investigating
Zscaler investigated an issue with its Dubai II data center on zscloud.net. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details wi...
Atlanta II (ATL2) Datacenter Network Maintenance - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com
Started:
resolved
Zscaler will be performing hardware maintenance in the Atlanta II (ATL2) Datacenter.Maintenance window,Start: 2026-07-08 03:00 EDTEnd: 2026-07-08 07:00 EDT(i.e. 2026-07-08 07:00 - 11:00 UTC)Update - Wed, 08 Jul 2026 10:40:25 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Release Upgrade for Zscaler Data Security Posture Management (DSPM) - app.zsdpc.net
Started:
investigating
Zscaler Data Posture Control (DSPM) Operations team will be performing a planned upgrade activity on July 6th, 2026. These service updates are applied in regional off-peak hours and should not result in any downtime for customers. Please reach out to Customer support for more information about the changes.
Scheduled Maintenance Extended - zscloud.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be extending the scheduled maintenance of the zscloud.net cloud (Asia Pacific Region) by 2 hours. As part of our standard maintenance process, all logs will be collected and available after maintenance has been completed. Please contact Zscaler Support if you have additional questions.
ZDX Call Quality Monitoring Issue - zdxcloud.net
Started:
investigating
Zscaler has detected an issue with its zdxcloud.net Cloud. Zscaler has identified an issue affecting the Call Quality Monitoring (CQM) feature on the zdxcloud.net cloud. While customers can still access the ZDX portal, they may find Zoom CQM data unavailable or observe missing call quality information.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status chan...
Urgent Maintenance: Authentication Service - private.zscaler.com, zpatwo.net
Started:
resolved
Zscaler will perform urgent maintenance for the Authentication Service between 14:15 UTC to 17:15 UTC on Saturday, July 4, 2026.There is no impact to end users and this demands no action from our customers.Update - Sat, 04 Jul 2026 17:27:52 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Reporting and Logging Issue - zscaler.net
Started:
investigating
Zscaler has detected an issue with its zscaler.net Cloud. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: Root cause was attributed to a network issue in the affected infrastructure component.Update - Fri, 03 Jul 2026 06:03:18 UTCZscaler observed weblog lag across ...
Private Application Session Timeouts with ZIA Inspection Enabled - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler is investigating customer reports of connection timeouts affecting a limited subset of customers who use Zscaler Private Access (ZPA) with Zscaler Internet Access (ZIA) Inspection enabled for certain private application traffic. Affected users may experience connection timeouts or dropped sessions for SSH and other long-lived, non-HTTP private application sessions inspected by ZIA. This issue does not affect all ZPA customers or customers who do not use ZIA Inspection for the affected...
AI/ML Dictionaries for DLP Policies Issue - zscalertwo.net, zscalerthree.net
Started:
investigating
Zscaler is investigating an issue affecting the zscalertwo.net cloud that is impacting AI/ML dictionary enforcement for Data Loss Prevention (DLP) policies. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: A configuration/model-file mismatch introduced during a rece...
Datacenter Expansion SantiagoII (SCL2) - private.zscaler.com, zpatwo.net
Started:
investigating
As part of our regular expansion of capacity, we are adding ZPA Public Service Edge nodes to our new data center in santiago II (SCL2).These would be available anytime on or after 3rd July 2026.RegionLocationNotesAMERSANTIAGO IINew DCThe IP addresses for the DC are part of the already published IP address range.Please update your firewall policy rules along with any upstream ACL(s) to allow the IP address ranges to avoid any service disruption.For more information, please visit:https://config...
Release Upgrade for Zscaler Data Security Posture Management (DSPM) - app.eu.zsdpc.net
Started:
resolved
Zscaler Data Posture Control (DSPM) Operations team will be performing a planned upgrade activity on July 2nd, 2026. These service updates are applied in regional off-peak hours and should not result in any downtime for customers. Please reach out to Customer support for more information about the changes. Update - Thu, 02 Jul 2026 05:40:37 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
End-of-life for ZscalerOS 24 - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Dear Zscaler Customer,In accordance with our End-of-Life (EOL) policy, Zscaler is formally announcing the EOL of ZscalerOS 24 (ZSOS24) effective December 31, 2026.To ensure continuous security updates and the latest features, all virtual appliances must transition to ZscalerOS 42 (ZSOS42).For the Vast Majority of Customers (No Action Required):Zscaler has already migrated, or will soon migrate, your ZSOS24 virtual appliances to ZSOS42. If your appliances are eligible for migration, no manua...
Addition to Zscaler Hub IP Address Ranges - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, zdxcloud.net
Started:
investigating
Dear Zscaler Customer,In accordance with Zscaler Service Continuity Policy and per email notification sent on July 1, 2026, we would like to notify you of the changes to the Zscaler Hub IP Addresses as listed below. These will be effective anytime on or after August 30, 2026; 60 days or more from the date the first email notification is sent.Please update your firewall policy rules and any upstream Access Control Lists (ACLs) to allow the new IP address ranges to avoid any service disruptio...
Upcoming Data Center Expansions - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zpatwo.net
Started:
investigating
Dear Zscaler Customer,In accordance with Zscaler Service Continuity Policy and per email notification sent on July 1, 2026, we would like to notify you of the upcoming data center expansions at the locations listed below. These would be available anytime on or after August 30, 2026; 60 days or more from the date the first email notification is sent.Please update your firewall policy rules and any upstream Access Control Lists (ACLs) to allow the new IP address ranges to avoid any service di...
Intermittent DNS Resolution Failures for Wildcard Domains - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler has detected an issue with its zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net Cloud. Some customers may experience intermittent DNS resolution failures on both Private Service Edge and Public Service Edge.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Lates...
RHEL 9.x Boot Issue Impacting ZPA Components During OS Upgrades - private.zscaler.com, zpatwo.net, zpabeta.net
Started:
investigating
Zscaler is aware of a boot-related issue affecting Red Hat Enterprise Linux (RHEL) 9.x that can impact ZPA infrastructure components, and to share the steps we are taking to protect your environment.A recent Red Hat update (RHBA-2026:18665, released with RHEL 9.x on May 19, 2026) increased the size of a core system boot file. On the affected components, this larger file can exceed the space available in the system's boot partition, which may prevent the component from starting up properly. It...
June 2026
Removal of Custom IP-Based Application Bypass feature from iOS App Profiles in Experience Center and Client Connector Admin Port - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler has removed the Custom IP-Based Application Bypass feature dropdown in iOS App Profiles as the feature isn’t supported by Zscaler Client Connector on iOS devices at this time. Custom IP-Based Application Bypasses are a list of destination IP addresses, subnets, ports and protocols used by specific applications and can be selected in App Profiles to bypass traffic for a specific application when Z-Tunnel 2.0 is used for traffic forwarding.The Custom IP-Based Application Bypass featur...
Reminder Notification for Upcoming New DCs and Expansions - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zpatwo.net
Started:
investigating
Dear Customer, In accordance with the Zscaler Service Continuity Policy and as previously announced via email notification and Trust on May 15, 2026, we would like to remind you of the upcoming New DCs and expansions at the locations listed below. These would be available anytime on or after July 14, 2026.Please update your firewall policy rules and any upstream access lists to allow the new IP address ranges to avoid any service disruption.RegionLocationCIDRNotesAmericasToronto III13...
San Francisco IV Datacenter Scheduled Maintenance - IPv6 Enablement - zscalertwo.net
Started:
resolved
Zscaler will be enabling IPv6 at our San Francisco IV (SJC4) Data Center. During the maintenance window the services through SJC4 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is June 30, 6:00 pm PDT (July 1, 1:00 UTC)End time is June 30, 11:00 pm PDT (July 1, 6:00 UTC)Update - Wed, 01 Jul 2026 07:12:31 UTCThis activity has been completed. Please contact Zscaler ...
Reporting and Logging Issue - zscalertwo.net
Started:
investigating
Zscaler has detected an issue with its zscalertwo.net Cloud. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: The issue occurred due to an internal service processing disruption.Latest Update - Sat, 27 Jun 2026 12:05:30 UTCFollowing the actions previously taken by Zs...
New Delhi I Datacenter Issue - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zpatwo.net
Started:
investigating
Zscaler is currently investigating reports of an issue with its New Delhi I datacenter. Customers may encounter disconnections, periods of slowness or increased latency. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status s...
Administration UI and User Authentication Issues - zscalerthree.net
Started:
investigating
Zscaler has detected an issue with the administration UI and user authentication on its zscalerthree.net Cloud. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: Primary CA was recoveredLatest Update - Fri, 26 Jun 2026 11:15:59 UTCFollowing the actions previously tak...
Oslo III Datacenter Scheduled Maintenance - IPv6 Enablement - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
resolved
Zscaler will be enabling IPv6 at our Oslo III (OSL3) Data Center. During the maintenance window the services through OSL3 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is June 29, 9:00 am PDT (June 29, 16:00 UTC)End time is June 29, 2:00 pm PDT (June 29, 21:00 UTC)Update - Mon, 29 Jun 2026 20:50:55 UTCThis activity has been completed. Please contact Zscaler Suppo...
Scheduled Maintenance Extended - APAC Region - zscalerthree.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be extending the scheduled maintenance of the APAC region's datacenters on zscalerthree.net cloud by 3 hours. During this extended maintenance window the ZIA Admin Portal, including policy management and reporting access, and new user authentication should be successful. As part of our standard maintenance process, all logs will be collected and available after maintenance has been completed.
Connectivity Issues Affecting India Data Centers - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zpatwo.net
Started:
investigating
Zscaler has detected an issue with its Chennai II, Chennai III, Hyderabad I, Mumbai VI, Mumbai VII, New Delhi I datacenter and is currently investigating the matter. We are investigating periods of slowness, connection timeouts and/or increased latency. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as t...
Warsaw II (WAW2) Datacenter Issue - zscaler.net, zscloud.net
Started:
investigating
Zscaler has detected an issue with its Warsaw II (WAW2) datacenter and is currently investigating the matter. Customers may encounter disconnections, periods of slowness or increased latency. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please chec...
Vancouver I Datacenter Issue - zscalertwo.net
Started:
investigating
Zscaler has detected an issue with our Vancouver I datacenter and is currently investigating the matter. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status chan...
ZPA Diagnostic logs Issue - private.zscaler.com
Started:
investigating
Zscaler is currently investigating reports of issues with its private.zscaler.com Cloud. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: Issue occurred due to an internal processing issueLatest Update - Wed, 24 Jun 2026 03:45:28 UTCFollowing the actions previously t...
Intermittent 403 Errors - zslogin.net
Started:
investigating
Zscaler has detected an issue with its zslogin.net Cloud. Customers may experience intermittent 403 errors when attempting to access zslogin.net. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: A fix was deployed to restore stability following a software defect.Lat...
Authentication Errors Affecting Zscaler Client Connector (ZCC) API Requests via the Authentication Service - zscalertwo.net, zscalerthree.net
Started:
investigating
Zscaler is investigating an issue impacting a subset of customers where API requests to the Zscaler Client Connector (ZCC) APIs through the Authentication Service (ZIdentity) may return HTTP 401 responses. Other API services may continue to operate as expected. Zscaler teams are actively investigating the issue and working to identify the cause. We will provide additional updates as more information becomes available. For detailed updates, please check the Service Status section in your Zsca...
National Vulnerability Database (NVD) Connector Synchronization Failures - app.avalor.io, app.eu.avalor.io, app.aps.avalor.io
Started:
investigating
Zscaler is aware of an issue affecting the National Vulnerability Database (NVD) Connector, resulting in failures during incremental synchronization of vulnerability data. Zscaler investigation has determined that the issue is caused by a service degradation affecting the National Vulnerability Database (NVD) REST API, which the connector relies upon to retrieve vulnerability information.Customer ImpactCustomers using the NVD Connector may experience:Failed incremental synchronization attempt...
ZTW Control Gateway Connection Degradation - zscaler.net
Started:
investigating
Zscaler has detected and is investigating a service degradation affecting ZTW Control Gateway connectivity within the zscaler.net cloud. Customers using Zero Trust SD-WAN Devices (ZTW) devices, Cloud Connectors, and Branch Connectors may experience issues establishing new connections or reconnecting to the service. Previously established connections may continue to operate; however, connectivity behavior may vary depending on existing session and cache states.Zscaler teams are actively inve...
Upcoming Data Center Expansion in Zpa - private.zscaler.com
Started:
investigating
As part of our regular expansion of capacity, we are adding additional ZPA Public Service Edge nodes to our existing data center in Seattle (SEA1) for Zpa cloud.These would be available anytime on or after June 25, 2026.RegionLocationNotesAMERICASSEATTLE Expansion of Existing DCThe IP addresses for the DC are part of the already published IP address range.Please update your firewall policy rules along with any upstream ACL(s) to allow the IP address ranges to avoid any service disruption.For...
ZDX Admin Portal – Reporting and Logging Delay - zdxcloud.net
Started:
resolved
Zscaler has detected an issue with Reporting and Logging on its zdxcloud.net Cloud. Customers may experience gaps in ZDX telemetry data.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Latest Update - Tue, 23 Jun 2026 23:56:01 UTCZscaler has restored the affected service and co...
New Policy Issue - zscaler.net
Started:
investigating
Zscaler is actively investigating a potential intermittent connectivity and performance issue affecting zscaler.net Cloud that may be impacting some customers. Our teams are currently assessing the scope and cause. We will provide an update as soon as more information becomes available.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and addition...
Scheduled Maintenance Extended - AMER Region - zscaler.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be extending the scheduled maintenance of the AMER region's datacenters on zscaler.net cloud by 3 hours. During this extended maintenance window the ZIA Admin Portal, including policy management and reporting access, and new user authentication should be successful. As part of our standard maintenance process, all logs will be collected and available after maintenance has been completed.
Urgent Maintenance on Hyderabad I, Kolkata I, Mumbai VI, Mumbai VII, New Delhi I datacenters - zscalerthree.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on the Hyderabad I, Kolkata I, Mumbai VI, Mumbai VII, New Delhi I datacenters on the zscalerthree.net cloud. This maintenance can take up to 3 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available after maintenance is complete. Please contact Zscaler Support if you have additional questions.
Intermittent Traffic Related Issues - zscaler.net
Started:
investigating
Zscaler has identified an intermittent issue affecting a small subset of service edges in the zscaler.net cloud and is actively investigating the matter. Customers may experience intermittent slowness, connection timeouts, or increased latency. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they b...
Scheduled Maintenance Extended - AMER Region - zscloud.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be extending the scheduled maintenance for AMER Region by two hours. As part of our standard maintenance process, all logs will be collected and available after maintenance has been completed. Please contact Zscaler Support if you have additional questions.
Cybersecurity Insight Report, Company Risk Score, and Patient Zero security alerts issue - zscaler.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler has detected an issue with the Cybersecurity Insight Report, Company Risk Score, and Patient Zero security alerts on the zscaler.net, zscloud.net, and zscalerthree.net Clouds.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: A recent fix introduced an unintend...
Scheduled Maintenance Extended - EMEA Region - zscloud.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be extending the scheduled maintenance of the EMEA region's datacenters on zscloud.net cloud by 3 hours. During this extended maintenance window the ZIA Admin Portal, including policy management and reporting access, and new user authentication should be successful. As part of our standard maintenance process, all logs will be collected and available after maintenance has been completed.
Urgent Maintenance on Dallas I, Dallas II, New York III, New York IV datacenters - zscaler.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on the Dallas I, Dallas II, New York III, New York IV datacenters on the zscaler.net cloud. This maintenance can take up to 3 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available after maintenance is complete. Please contact Zscaler Support if you have additional questions.
Urgent Maintenance on Dallas I, Dallas II, Washington DC, Washington DC IV datacenters - zscloud.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on the Dallas I, Dallas II, Washington DC, Washington DC IV datacenters on the zscloud.net cloud. This maintenance can take up to 3 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available after maintenance is complete. Please contact Zscaler Support if you have additional questions.
NSS Exclude Filter Configuration Issue - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler is investigating an issue affecting Nanolog Streaming Service (NSS) feed filtering. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Latest Update - Thu, 18 Jun 2026 07:27:01 UTCZscaler has identified a permanent fix. The fix is being deployed to ZS3 and ZS3 Cloud this w...
Brussels (BRU2) Datacenter Network Maintenance - zscaler.net, zscalertwo.net
Started:
resolved
Zscaler will be performing hardware maintenance in the Brussels II (PAR4) Datacenter.Maintenance window,Start: 2026-06-18 19:30 CESTEnd: 2026-06-18 21:30 CEST(i.e. 2026-06-18 17:30 - 19:30 UTC)During the maintenance, traffic will failover to redundant devices in the same datacenter. However, intermittent connections and connection reestablishment will be observed.Update - Thu, 18 Jun 2026 21:42:18 UTCThis activity has been completed. Please contact Zscaler Support if you have additional quest...
Experience Center Default Sign-on - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zpatwo.net, zslogin.net
Started:
investigating
What Zscaler is standardizing the post-login landing experience so that tenants move to the Zscaler Experience Center as the steady-state destination instead of the Authentication Service.Action RequiredNo action is necessary. Zscaler encourages customers to utilize the Experience Center, as standalone portals are being phased out by Sept 30, 2026.AvailabilityChange is happening on June 19, 2026 What is changingZscaler is revising the Admin login redirection process to support the o...
Munich I (MUC1) Datacenter Network Maintenance - zscaler.net, zscloud.net
Started:
resolved
Zscaler will be performing hardware maintenance in the Munich I (MUC1) Datacenter.Maintenance window,Start: 2026-06-17 20:00 CESTEnd: 2026-06-17 23:00 CEST(i.e. 2026-06-17 18:00 - 21:00 UTC)During the maintenance, traffic will failover to redundant devices in the same datacenter. However, intermittent connections and connection reestablishment will be observed.Update - Thu, 17 Jun 2026 20:13:50 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Manchester II (MAN2) Datacenter Network Maintenance - zscaler.net
Started:
resolved
Zscaler will be performing hardware maintenance in the Manchester II (MAN2) Datacenter.Maintenance window,Start: 2026-06-17 22:00 BSTEnd: 2026-06-18 01:00 BST(i.e. 2026-06-17 21:00 - 2026-06-18 00:00 UTC)During the maintenance, traffic will failover to redundant devices in the same datacenter. However, intermittent connections and connection reestablishment will be observed.Update - Wed, 17 Jun 2026 23:07:39 UTCThis activity has been completed. Please contact Zscaler Support if you have addit...
Atlanta II (ATL2) Datacenter Network Maintenance - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com
Started:
resolved
Zscaler will be performing hardware maintenance in the Atlanta II (ATL2) Datacenter.Maintenance window,Start: 2026-06-17 03:00 EDTEnd: 2026-06-17 07:00 EDT(i.e. 2026-06-17 07:00 - 11:00 UTC)Update - Wed, 17 Jun 2026 09:56:29 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Urgent Maintenance on AMER Region - zscloud.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on AMER Region on the zscloud.net cloud. This maintenance can take up to 4 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available after maintenance is complete. Please contact Zscaler Support if you have additional questions.
Urgent Maintenance on AMER Region - zscaler.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on AMER Region on the zscaler.net cloud. This maintenance can take up to 4 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available after maintenance is complete. Please contact Zscaler Support if you have additional questions.
Upcoming Data Center Expansions - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zpatwo.net
Started:
investigating
Dear Zscaler Customer,In accordance with Zscaler Service Continuity Policy and per email notification sent on June 15, 2026, we would like to notify you of the upcoming data center expansions at the locations listed below. These would be available anytime on or after August 14, 2026; 60 days or more from the date the first email notification is sent.Please update your firewall policy rules and any upstream Access Control Lists (ACLs) to allow the new IP address ranges to avoid any service d...
Intermittent Connectivity Issues Impacting a Subset of Destinations - zscaler.net, zscloud.net
Started:
investigating
Zscaler is investigating an issue that may affect connectivity when accessing a subset of destinations. Based on our current assessment, impacted customers may experience application access failures, connection timeouts, and website reachability issues. The impact is intermittent and may vary depending on the service path used to process individual user sessions, including traffic traversing Public Service Edge and Private Service Edge infrastructure.Our teams are actively investigating to de...
Scheduled Maintenance Extended - zscloud.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be extending the scheduled maintenance of the zscloud.net cloud by 2 hours. As part of our standard maintenance process, all logs will be collected and available after maintenance has been completed. Please contact Zscaler Support if you have additional questions.
ZPA Performance issues - private.zscaler.com
Started:
investigating
Zscaler has detected an issue with its private.zscaler.com Cloud. We are currently investigating period of slowness, latency or connection timeouts while accessing ZPA Applications.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: Elevated DNS traffic conditions resul...
Urgent Maintenance - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance during which access to the Zscaler Management Portal for Partners and ZDX Admin Portal might not be available. This maintenance is scheduled for Thursday at 8:00 PM Pacific Time on June 11, 2026 (Friday, June 12, 2026 03:00 AM UTC), and can take up to 3 hours to complete. All logs will be collected and available after maintenance is complete. Please contact Zscaler Support if you have additional questions.
Administration UI Issue - zscaler.net
Started:
investigating
Zscaler has detected an issue with the administration UI on its zscaler.net Cloud. We are investigating periods of slowness, connection timeouts and/or increased latency. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: Temporary performance degradation in the Admin...
Urgent Maintenance on Chicago, New York, Dallas, Atlanta, Washington datacenters - zscaler.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on the Chicago, New York, Dallas, Atlanta, Washington datacenters on the zscaler.net cloud. This maintenance is scheduled for Thursday at 09:00 PM Pacific Time on June 11, 2026 (Friday, June 12, 2026 4:00 AM UTC), and can take up to 3 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available after maintenance is complete. Please con...
Urgent Maintenance on London, Frankfurt, Manchester, Amsterdam, Zurich datacenters - zscaler.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on the London, Frankfurt, Manchester, Amsterdam, Zurich datacenters on the zscaler.net cloud. This maintenance is scheduled for Thursday at 01:00 PM Pacific Time on June 11, 2026 (Thursday, June 11, 2026 08:00 PM UTC), and can take up to 3 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available after maintenance is complete. Pleas...
Zurich I (ZRH1) Datacenter Network Maintenance - zdxcloud.net
Started:
resolved
Zscaler will be performing hardware maintenance in the Zurich I (ZRH1) Datacenter.Maintenance window,Start: 2026-06-10 18:00 CESTEnd: 2026-06-10 22:00 CEST(i.e. 2026-06-10 16:00 - 20:00 UTC)During this maintenance, traffic will failover to redundant devices in the same datacenter, and we expect no service impact. [UPDATE: Extending trust an additional two hours]Update - Wed, 10 Jun 2026 18:43:03 UTCThis activity has been completed. Please contact Zscaler Support if you have additional ques...
Urgent Maintenance on San Francisco IV datacenter - zscloud.net, zscalerthree.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on the San Francisco IV datacenter on the zscloud.net and zscalerthree.net clouds. This maintenance can take up to 3 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available after maintenance is complete. Please contact Zscaler Support if you have additional questions.
Data Fabric - Delay in Data Delivery - zscaler.net, zscalerone.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler has identified an issue affecting Data Fabric. Web Log and Firewall transaction data delivery to Breach Predictor and Red Canary is delayed. Other logging and data collection services remain operational.Zscaler teams are actively working to restore normal data processing and will provide updates as progress is made. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as ...
New Delhi I and Mumbai VI Data center Issue - zscaler.net, zscalerthree.net
Started:
investigating
Zscaler has detected an issue with our New Delhi I (ZSN) and Mumbai VI (ZS3) data centers and is currently investigating the matter. Customers may encounter disconnections, periods of slowness or increased latency. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For deta...
Urgent Maintenance - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance during which access to the Partner Admin UI will not be available. This maintenance can take up to 30 minutes to complete. All the logs that are collected during this period will be available after the maintenance ends.Update - Fri, 05 Jun 2026 08:47:48 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Urgent Maintenance on San Francisco IV datacenter - zscaler.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on the San Francisco IV datacenter on the zscaler.net cloud. This maintenance can take up to 2 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available after maintenance is complete. Please contact Zscaler Support if you have additional questions.
Lagos III (LOS3) Datacenter Urgent Network Maintenance - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com
Started:
resolved
Zscaler will be performing urgent hardware maintenance in the Lagos III (LOS3) Datacenter.Maintenance window,Start: 2026-06-05 04:00 WATEnd: 2026-06-05 08:00 WAT(i.e. 2026-06-05 03:00 - 07:00 UTC)During this maintenance, traffic will failover to redundant devices in the same datacenter, and we expect no service impact. Update - Fri, 05 Jun 2026 04:08:22 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
CASB - SaaS Security API Integration Issue for OpenAI (ChatGPT) - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler has identified and is investigating an issue affecting CASB SaaS Security scanning for OpenAI (ChatGPT). Customers may experience delays in security scan results and related incident reporting for OpenAI content. Zscaler teams are actively investigating the issue and working to restore services. We will provide additional updates as more information becomes available. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status c...
Urgent Maintenance on Boston I datacenter - zscalertwo.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on the Boston I datacenter on the zscalertwo.net cloud. This maintenance can take up to 2 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available after maintenance is complete. Please contact Zscaler Support if you have additional questions.
Frankfurt VI Datacenter Scheduled Maintenance - IPv6 Enablement - zscalertwo.net, zscloud.net
Started:
resolved
Zscaler will be enabling IPv6 at our Frankfurt VI (FRA6) Data Center. During the maintenance window the services through FRA6 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is June 4, 11:00 am PDT (June 4, 18:00 UTC)End time is June 4, 4:00 pm PDT (June 4, 23:00 UTC)Update - Thu, 04 Jun 2026 23:26:26 UTCThis activity has been completed. Please contact Zscaler Supp...
Release Upgrade for Zscaler Data Security Posture Management (DSPM) - app.zsdpc.net
Started:
resolved
Zscaler Data Posture Control (DSPM) Operations team will be performing a planned upgrade activity on June 3rd, 2026. These service updates are applied in regional off-peak hours and should not result in any downtime for customers. Please reach out to Customer support for more information about the changes. Update - Wed, 03 Jun 2026 05:50:24 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Issue Affecting User-Based Filtering in ZIA Admin UI and Experience Center - zscalertwo.net
Started:
investigating
Zscaler is aware of and investigating an issue affecting user-based filtering across portions of the ZIA Admin UI and Experience Center. Customers may be unable to search for, locate, or select specific users when applying user filters, which may impact user-specific analysis and administrative workflows.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status c...
San Francisco IV (SJC4) Datacenter Network Maintenance - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
resolved
Zscaler will be performing hardware maintenance in San Francisco IV (SJC4) Datacenter.Maintenance window: Start: 2026-06-04 02:00 UTC End: 2026-06-04 05:00 UTC (Local Time 2026-06-03 19:00 - 2026-06-03 22:00)Update - Thu, 04 Jun 2026 04:08:08 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Urgent Maintenance on San Francisco IV datacenter - zscalertwo.net, zscloud.net, zscalerthree.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on the San Francisco IV datacenter on the zscaler.net, zscalertwo.net, zscloud.net clouds. This maintenance can take up to 4 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available after maintenance is complete. Please contact Zscaler Support if you have additional questions.
Upcoming New Data Centers and Expansions - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zpatwo.net
Started:
investigating
Dear Zscaler Customer,In accordance with Zscaler Service Continuity Policy and per email notification sent on June 1, 2026, we would like to notify you of the upcoming new data centers and expansions at the locations listed below. These would be available anytime on or after July 31, 2026; 60 days or more from the date the first email notification is sent.Please update your firewall policy rules and any upstream Access Control Lists (ACLs) to allow the new IP address ranges to avoid any ser...
Addition to Zscaler Hub IP Address Ranges - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, zdxcloud.net
Started:
investigating
Dear Zscaler Customer,In accordance with Zscaler Service Continuity Policy and per email notification sent on June 1, 2026, we would like to notify you of the changes to the Zscaler Hub IP Addresses as listed below. These will be effective anytime on or after July 31, 2026; 60 days or more from the date the first email notification is sent.Please update your firewall policy rules and any upstream Access Control Lists (ACLs) to allow the new IP address ranges to avoid any service disruption....
Zscaler Client Connector-Based End User Notifications Issue - zscalerthree.net
Started:
investigating
Zscaler has detected an issue with Zscaler Client Connector-Based End User Notifications on its zscalerthree.net Cloud. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: The issue was caused by an underlying infrastructure resource constraint.Latest Update - Mon, 01 ...
Release Upgrade for Zscaler Data Security Posture Management (DSPM) - app.eu.zsdpc.net
Started:
investigating
Zscaler Data Posture Control (DSPM) Operations team will be performing a planned upgrade activity on June 1st, 2026. These service updates are applied in regional off-peak hours and should not result in any downtime for customers. Please reach out to Customer support for more information about the changes.
May 2026
Urgent Maintenance - Privileged Remote Access - zpatwo.net
Started:
resolved
Zscaler will be performing an urgent maintenance on the private.zscaler.com cloud on Friday, May 29, 2026, starting at 06:15 PM UTC. During this maintenance window, Privileged Remote Access (PRA) sessions may be briefly disrupted. If a session disconnects, users will need to manually reconnect. Update - Sun, 31 May 2026 14:48:27 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Urgent Maintenance - Privileged Remote Access - private.zscaler.com
Started:
resolved
Zscaler will be performing an urgent maintenance on the private.zscaler.com cloud on Friday, May 29, 2026, starting at 07:45 AM UTC. During this maintenance window, Privileged Remote Access (PRA) sessions may be briefly disrupted. If a session disconnects, users will need to manually reconnect.Update - Fri, 29 May 2026 09:44:35 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Experience Center Page Load Failures - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zdxcloud.net
Started:
investigating
A subset of users accessing Experience Center may have experienced intermittent 401 Unauthorized errors impacting Experience Center pages, actions, and certain Experience Center driven automations. In some cases, users may have observed failed page loads or authentication-related retries.Zscaler identified the issue within infrastructure supporting authentication and session validation services in the US West region. Mitigation actions were completed by redirecting traffic to an alternate reg...
ZDX Zoom Call Quality Monitoring Issue - zdxcloud.net
Started:
investigating
Zscaler has identified an issue impacting Zoom Call Quality Monitoring (CQM) within ZDX, where Zoom webhook data is not currently being received as expected. As a result, Zoom call quality metrics may appear delayed, stale, or unavailable in the ZDX portal. Zscaler is actively investigating the issue and working to restore normal data processing.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscal...
Warsaw II Datacenter Scheduled Maintenance - IPv6 Enablement - zscalertwo.net, zscalerthree.net
Started:
resolved
Zscaler will be enabling IPv6 at our Warsaw II (WAW2) Data Center. During the maintenance window the services through WAW2 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is May 28, 9:00 am PDT (May 28, 16:00 UTC)End time is May 28, 3:00 pm PDT (May 28, 22:00 UTC)Update - Thu, 28 May 2026 22:15:30 UTCThis activity has been completed. Please contact Zscaler Support ...
ZIdentity Portal Issue - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zdxcloud.net, zpatwo.net, app.eu.zsdpc.net, zslogin.net
Started:
investigating
Zscaler is investigating an issue with ZIdentity Portal on our zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zdxcloud.net Cloud. Status changes will be updated here as they become available.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become...
Scheduled Maintenance Extended - zscloud.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be extending the scheduled maintenance of the zscloud.net cloud (Asia Pacific Region) by 4 hours. As part of our standard maintenance process, all logs will be collected and available after maintenance has been completed. Please contact Zscaler Support if you have additional questions.
Scheduled Maintenance Extended - EMEA Region - zscalertwo.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be extending the scheduled maintenance of the EMEA region's datacenters on zscalertwo.net cloud by 2 hours. During this extended maintenance window the ZIA Admin Portal, including policy management and reporting access, and new user authentication should be successful. As part of our standard maintenance process, all logs will be collected and available after maintenance has been completed
Scheduled Maintenance Extended - EMEA Region - zscalerthree.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be extending the scheduled maintenance of the EMEA region's datacenters on zscalerthree.net cloud by 2 hours. During this extended maintenance window the ZIA Admin Portal, including policy management and reporting access, and new user authentication should be successful. As part of our standard maintenance process, all logs will be collected and available after maintenance has been completed
Packet Capture Probing Issue - zdxcloud.net
Started:
investigating
Zscaler has identified an issue affecting the zdxcloud.net cloud. As a result, the Packet Capture Probing option is currently temporarily unavailable when starting a New Diagnostics Session.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Update - Thu, 21 May 2026 15:10:19 UTCPa...
ZDX Server Error Issue - zdxcloud.net
Started:
investigating
Zscaler has detected an issue with its zdxcloud.net Cloud. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Latest Update - Thu, 21 May 2026 10:50:18 UTCMitigation efforts remain effective, and service metrics continue to be stable. Zscaler will maintain close monitoring through...
Scheduled Maintenance Extended - CHI - zscalerthree.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be extending the scheduled maintenance for CHI DCs by two hours. As part of our standard maintenance process, all logs will be collected and available after maintenance has been completed. Please contact Zscaler Support if you have additional questions.
Scheduled Maintenance Extended - LON, HKG - zscalertwo.net, zscalerthree.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be extending the scheduled maintenance for LON and HKG DCs by an hour. As part of our standard maintenance process, all logs will be collected and available after maintenance has been completed. Please contact Zscaler Support if you have additional questions.
Inline DLP Policy Editing Issue for Non Super Admin Users - zscalertwo.net, zscalerthree.net
Started:
investigating
Zscaler is investigating an issue impacting tenants with Admin Ranking enabled, where administrators without Super Admin privileges may be unable to edit inline DLP policies after creation. Current investigation indicates newly created or existing inline DLP policies may be assigned an incorrect administrative rank value, preventing subsequent policy modifications by the original administrator. At this time, Super Admin accounts remain able to modify affected policies. Zscaler teams are activ...
Tokyo V (TYO5) Datacenter Network Maintenance - zscloud.net
Started:
resolved
Zscaler will be performing hardware maintenance in Tokyo V (TYO5) Datacenter.Maintenance window: Start: 2026-05-20 11:00 UTC End: 2026-05-20 14:00 UTC (Local Time 2026-05-20 20:00 - 2026-05-20 23:00 JST)Update - Wed, 20 May 2026 12:48:09 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
DNS resolution Control Gateway issue on ZS2 - zscalertwo.net
Started:
investigating
Zscaler has detected an issue with its zscalertwo.net Cloud. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root cause- Issue occurred due to an control-plane event that temporarily prevented control gateway DNS endpoints from being published.Latest Update - Tue, 19 May 2026 ...
Upcoming New Data Centers and Expansions - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zpatwo.net
Started:
investigating
Dear Zscaler Customer,In accordance with Zscaler Service Continuity Policy and per email notification sent on May 15, 2026, we would like to notify you of the upcoming new data centers and expansions at the locations listed below. These would be available anytime on or after July 14, 2026; 60 days or more from the date the first email notification is sent.Please update your firewall policy rules and any upstream Access Control Lists (ACLs) to allow the new IP address ranges to avoid any ser...
Miami IV Data Center online - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Dear Zscaler Customer,You are receiving this notice in accordance with the Zscaler Service Continuity Policy.As part of our effort to enhance our Security Cloud’s robustness and performance, Zscaler will be bringing online a new Miami IV (MIA4) data center. This facility will be added to the public resolution service (Auto Geo Proximity) on May 19, 2026What if I have more questions? Contact Zscaler Support via the “Support” link at the top-right of the Zscaler Administration U.I page....
Reminder Notification for Upcoming New DCs and Expansions - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zpatwo.net
Started:
investigating
Dear Customer, In accordance with the Zscaler Service Continuity Policy and as previously announced via email notification and Trust on April 1st, 2026, we would like to remind you of the upcoming New DCs and expansions at the locations listed below. These would be available anytime on or after May 31, 2026Please update your firewall policy rules and any upstream access lists to allow the new IP address ranges to avoid any service disruption.RegionLocationCIDRNotesAmericasMontreal I198.1...
Madrid IV (MAD4) Datacenter Network Maintenance - zscalertwo.net
Started:
resolved
Zscaler will be performing hardware maintenance in Madrid IV (MAD4) Datacenter.Maintenance window: Start: 2026-05-19 18:00 UTC End: 2026-05-19 21:00 UTC (Local Time 2026-05-19 20:00 - 2026-05-19 23:00 CEST)Update - Tue, 19 May 2026 21:01:52 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Madrid IV (MAD4) Datacenter Network Maintenance - zscloud.net
Started:
resolved
Zscaler will be performing hardware maintenance in the Madrid IV (MAD4) Datacenter.Maintenance window,Start: 2026-05-19 16:00 UTCEnd: 2026-05-19 19:00 UTC(i.e. 2026-05-19 18:00 - 21:00 Local Time)Update - Tue, 19 May 2026 18:49:58 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Urgent Maintenance on AMER Region - zscaler.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on AMER Region on the zscaler.net cloud. This maintenance can take up to 3 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available after maintenance is complete. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support ...
Amsterdam II Datacenter Issue - zscalertwo.net
Started:
investigating
Zscaler has detected an issue with our Amsterdam II datacenter and is currently investigating the matter. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status cha...
Helsinki I Datacenter Scheduled Maintenance - IPv6 Enablement - zscaler.net, zscalertwo.net, zscalerthree.net
Started:
investigating
Zscaler will be enabling IPv6 at our Helsinki I (HEL1) Data Center. During the maintenance window the services through HEL1 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is May 22, 9:00 am PDT (May 22, 16:00 UTC)End time is May 22, 2:00 pm PDT (May 22, 21:00 UTC)
Helsinki I Datacenter Scheduled Maintenance - Service Expansion - zscloud.net
Started:
investigating
Zscaler will be expanding its global data center footprint and performing maintenance at our Helsinki I (HEL1) data center. We expect minimal to no impact to services during the maintenance window. Please update your firewall policy rules and any upstream Access Control Lists to allow all IP addresses for this DCFor more information, please visit:https://config.zscaler.com/zscloud.net/cenrMaintenance Window:Start time is May 22, 9:00 am PDT (May 22, 16:00 UTC)End time is May 22, 2:00 pm PDT ...
Hong Kong III Datacenter Scheduled Maintenance – IPv6 Enablement - zscaler.net, zscloud.net
Started:
investigating
Zscaler will perform scheduled maintenance at our Hong Kong III (HKG3) Data Center to complete preparatory work for future IPv6 enablement. During the maintenance window, services through the HKG3 Data Center may be restarted in phases to minimize impact.Other Zscaler sites and services will continue to operate normally.Maintenance Window:Start time is May 20, 9:00 am PDT (May 20, 16:00 UTC)End time is May 20, 4:00 pm PDT (May 20, 23:00 UTC)
Capetown IV Datacenter Scheduled Maintenance - IPv6 Enablement - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler will be enabling IPv6 at our Capetown IV (CPT4) Data Center. During the maintenance window the services through CPT4 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is May 19, 9:00 am PDT (May 19, 16:00 UTC)End time is May 19, 4:00 pm PDT (May 19, 23:00 UTC)
Mexico City I Datacenter Scheduled Maintenance - IPv6 Enablement - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler will be enabling IPv6 at our Mexico City I (MEX1) Data Center. During the maintenance window the services through MEX1 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is May 18, 6:00 pm PDT (May 19, 1:00 UTC)End time is May 18, 11:00 pm PDT (May 19, 6:00 UTC)
IPsec Tunnel Connectivity Issues - zscalerthree.net
Started:
investigating
Zscaler is investigating an issue affecting a subset of customer IPsec tunnels. Issue is limited to new tunnel creation. Our team is actively working on resolution, and we will provide further updates as more information becomes available.For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause- The issue occurred due to a synchronization discrepan...
Zscaler Client Connector-Based End User Notifications Issue - zscalerthree.net
Started:
investigating
Zscaler has detected an issue with Zscaler Client Connector-Based End User Notifications on its zscalerthree.net Cloud. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Latest Update - Sat, 16 May 2026 19:40:20 UTCZscaler has completed the primary investigation regarding the is...
Scheduled Maintenance Extended - EMEA Region - zscloud.net
Started:
resolved
The Zscaler Site Reliability Engineering team will be extending the scheduled maintenance of the EMEA region's datacenters on zscloud.net cloud by 3 hours. During this extended maintenance window the ZIA Admin Portal, including policy management and reporting access, and new user authentication should be successful. As part of our standard maintenance process, all logs will be collected and available after maintenance has been completed.Update - Fri, 15 May 2026 01:25:55 UTCThis activity has ...
Urgent Maintenance - zscalerone.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on zscalerone.net cloud. This maintenance is scheduled for Friday at 01:00 AM Pacific Time on May 15, 2026 (Friday, May 15, 2026 08:00 AM UTC), and can take up to 4 hours to complete.During maintenance, which includes the control plane, the Admin Portal might be temporarily placed into read-only mode, making the following unavailable: configuration changes, new user provisioning, and existing user updates t...
RI CCS Test - zscaler.net
Started:
investigating
Zscaler has detected an issue with PAC file serving on its zscaler.net Cloud. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.
RI DC Test - zscaler.net
Started:
investigating
Zscaler has detected an issue with its Atlanta II datacenter and is currently investigating the matter. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status chang...
Chicago I (CHI1) Datacenter Network Maintenance - zscaler.net, zscalerone.net, zscalertwo.net, zscalerthree.net, zpabeta.net
Started:
investigating
Zscaler will be performing hardware maintenance in Chicago I (CHI1) Datacenter Datacenter.Scheduled Maintenance window, Start: 2026-05-15 23:00 UTC End: 2026-05-16 01:00 UTC (Local Time 2026-05-15 18:00 - 2026-05-15 20:00)
Urgent Maintenance - zdxcloud.net
Started:
investigating
The Zscaler SRE team will be performing an urgent maintenance on the zdxcloud.net cloud. This maintenance is scheduled for Thursday at 03:00 AM UTC on 14th May, 2026, and can take up to 2 hour to complete. During this maintenance window the ZDX Admin Portal, including policy management, reporting access, and authentication of new users will not be available. As part of our standard maintenance process all logs will be collected and available after maintenance has completed.Update - Thu, 14 Ma...
London III (LON3) Datacenter Network Maintenance - zscaler.net
Started:
resolved
Zscaler will be performing hardware maintenance in the London III (LON3) Datacenter.Maintenance window,Start: 2026-05-14 20:30 BSTEnd: 2026-05-14 23:30 BST(i.e. 2026-05-14 19:30 - 22:30 UTC)Update - Thu, 14 May 2026 21:54:47 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Datacenter Maintenance - private.zscaler.com
Started:
resolved
Zscaler is performing proactive emergency maintenance activity for data centers across Geo regions.Users may observe very brief disconnect and reconnect to ZPA cloud during the maintenance activity. Update - Wed, 13 May 2026 14:50:30 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Duplicate User Activity Logs Observed in SIEM LSS - private.zscaler.com, zpatwo.net
Started:
investigating
Zscaler is investigating an issue impacting a subset of customers using SIEM Log Streaming Service (LSS), where duplicate User Activity log entries may be observed within streamed payloads. Customers may experience increased SIEM log ingestion volume. There is no impact to inline traffic processing, policy enforcement, or overall service availability.Zscaler teams are actively investigating the issue and evaluating mitigation options. For detailed updates, please check the Service Status sect...
Connectivity Issues Affecting India Data Centers - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zpatwo.net
Started:
investigating
We are currently investigating a connectivity issue impacting traffic between India and certain European destinations, primarily the UK. Customers may experience intermittent performance degradation affecting international traffic originating from the following Zscaler data centers: Chennai II, Hyderabad I, Kolkata I, Mumbai VI, and Mumbai VII. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, ...
Singapore IV (SIN4) Datacenter Network Maintenance - zscloud.net, zscalerthree.net, zdxcloud.net
Started:
investigating
Zscaler will be performing hardware maintenance in the Singapore IV (SIN4) Datacenter.Maintenance window,Start: 2026-05-15 11:00 UTCEnd: 2026-05-15 13:00 UTC(Local Time 2026-05-15 19:00 - 21:00)
Zurich I (ZRH1) Datacenter Network Maintenance - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com
Started:
investigating
Zscaler will be performing hardware maintenance in the Zurich I (ZRH1) Datacenter.Maintenance window,Start: 2026-05-13 19:00 CESTEnd: 2026-05-13 23:00 CEST(i.e. 2026-05-13 17:00 - 21:00 UTC)During this maintenance, traffic will failover to redundant devices in the same datacenter, and we expect no service impact.Update - Wed, 13 May 2026 23:50:32 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Copenhagen II Datacenter Scheduled Maintenance - IPv6 Enablement - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler will be enabling IPv6 at our Copenhagen II (CPH2) Data Center. During the maintenance window the services through CPH2 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is May 15, 9:00 am PDT (May 15, 16:00 UTC)End time is May 15, 2:00 pm PDT (May 15, 21:00 UTC)
Dallas II Datacenter Scheduled Maintenance - IPv6 Enablement - zscloud.net
Started:
investigating
Zscaler will be enabling IPv6 at our Dallas II (DFW2) Data Center. During the maintenance window the services through DFW2 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is May 14, 6:00 pm PDT (May 15, 1:00 UTC)End time is May 14, 11:00 pm PDT (May 15, 6:00 UTC)
Frankfurt IV Datacenter Scheduled Maintenance - IPv6 Enablement - zscaler.net, zscalertwo.net, zscloud.net
Started:
investigating
Zscaler will be enabling IPv6 at our Frankfurt IV (FRA4) Data Center. During the maintenance window the services through FRA4 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is May 13, 9:00 am PDT (May 13, 16:00 UTC)End time is May 13, 4:00 pm PDT (May 13, 23:00 UTC)Update - Wed, 13 May 2026 23:19:31 UTCThis activity has been completed. Please contact Zscaler Suppo...
Dallas I Datacenter Scheduled Maintenance - IPv6 Enablement - zscaler.net, zscalertwo.net, zscloud.net
Started:
investigating
Zscaler will be enabling IPv6 at our Dallas I (DFW1) Data Center. During the maintenance window the services through DFW1 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is May 12, 6:00 pm PDT (May 13, 1:00 UTC)End time is May 12, 12:00 pm PDT (May 13, 7:00 UTC)Update - Wed, 13 May 2026 07:13:20 UTCThis activity has been completed. Please contact Zscaler Support if...
Perth I (PER1) Datacenter Network Maintenance - zscalertwo.net
Started:
investigating
Zscaler will be performing hardware maintenance in Perth I (PER1) Datacenter.Maintenance window: Start: 2026-05-12 12:00 UTC End: 2026-05-12 15:00 UTC (Local Time 2026-05-12 20:00 - 2026-05-12 23:00 AWST)Update - Tue, 12 May 2026 14:00:37 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Atlanta III (ATL3) Datacenter Network Maintenance - zscalertwo.net, private.zscaler.com
Started:
investigating
Zscaler will be performing hardware maintenance in Atlanta III (ATL3) Datacenter.Scheduled Maintenance window, Start: 2026-05-14 02:00 UTC End: 2026-05-14 06:00 UTC (Local Time 2026-05-13 22:00 - 2026-05-14 02:00)
User Authentication Issue on Beijing III and Shanghai II datacenter - zscaler.net
Started:
investigating
Zscaler has detected an issue with its Beijing III, Shanghai II datacenter and is currently investigating the matter. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP)....
China Premium Access Plus Beijing Datacenter (Beijing V) Network Maintenance - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Beijing V DC network providers have advised maintenance work as below. During the maintenance window, China Premium Access Plus Services within these data centres may experience intermittent disconnections.Start Time: 2026-05-27 20:00:00 UTCEnd Time: 2026-05-27 21:00:00 UTC(Datacenter Local Time 2026-05-28 04:00 - 2026-05-28 05:00 China Standard Time (UTC+8:00))Reason of Maintenance: Provider advised maintenance.Impact During Maintenance: Intermittent connectivity might be observed during t...
China Premium Access Plus Beijing Datacenter (Beijing V) Network Maintenance - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Beijing V DC network providers have advised maintenance work as below. During the maintenance window, China Premium Access Plus Services within these data centres may experience intermittent disconnections.Start Time: 2026-05-14 16:00:00 UTCEnd Time: 2026-05-14 17:00:00 UTC(Datacenter Local Time 2026-05-15 00:00 - 2026-05-15 01:00 China Standard Time (UTC+8:00))Reason of Maintenance: Provider advised maintenance.Impact During Maintenance: Intermittent connectivity might be observed during t...
Urgent Maintenance - zdxcloud.net
Started:
investigating
The Zscaler SRE team will be performing an urgent maintenance on the zdxcloud.net cloud. This maintenance is scheduled for Sunday at 03:05 AM UTC on 10th May, 2026, and can take up to 1 hour to complete. During this maintenance window the ZDX Admin Portal, including policy management, reporting access, and authentication of new users will not be available. As part of our standard maintenance process all logs will be collected and available after maintenance has completed.Update - Sun, 10 May ...
Urgent Maintenance - zdxcloud.net
Started:
investigating
The Zscaler SRE team will be performing an urgent maintenance on the zdxcloud.net cloud. This maintenance is scheduled for Saturday at 03:30 AM UTC on 9th May, 2026, and can take up to 1 hour to complete. During this maintenance window the ZDX Admin Portal, including policy management, reporting access, and authentication of new users will not be available. As part of our standard maintenance process all logs will be collected and available after maintenance has completed.Update - Sat, 09 May...
London III (LON3) Datacenter Network Maintenance - zscaler.net
Started:
investigating
Zscaler will be performing hardware maintenance in the London III (LON3) Datacenter.Maintenance window,Start: 2026-05-12 20:30 BSTEnd: 2026-05-12 23:30 BST(i.e. 2026-05-12 19:30 - 22:30 UTC)During the maintenance, traffic will failover to redundant devices in the same datacenter. However, intermittent connections and connection reestablishment may be observed.
Atlanta II (ATL2) Datacenter Network Maintenance - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zpatwo.net
Started:
investigating
Zscaler will be performing hardware maintenance in the Atlanta II (ATL2) Datacenter.Maintenance window,Start: 2026-5-12 03:00 EDTEnd: 2026-5-12 07:00 EDT(i.e. 2026-5-12 07:00 - 11:00 UTC)During this maintenance, traffic will failover to redundant devices in the same datacenter, and we expect no service impact.
ZDX Server Error Issue - zdxcloud.net
Started:
investigating
Zscaler has detected an issue with its zdxcloud.net Cloud. Customers may encounter intermittent ZDX Server Errors; additionally, the ZCC ZDX tab may not display scores or allow tests to run, and the ZDX portal may show gaps or delayed telemetry for impacted devices.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be po...
Urgent Scheduled Maintenance - zdxcloud.net
Started:
investigating
The Zscaler SRE team will be performing an urgent maintenance on the zdxcloud.net cloud. This maintenance is scheduled for Friday at 06:30 AM UTC on 8th May, 2026, and can take up to 30 minutes to complete. During this maintenance window the ZDX Admin Portal, including policy management, reporting access, and authentication of new users will not be available. As part of our standard maintenance process all logs will be collected and available after maintenance has completed.Update - Fri, 08 M...
New enrollments failing for App Connectors/PSEs/Network Connectors - private.zscaler.com, zpatwo.net, zpabeta.net
Started:
investigating
Zscaler is currently investigating reports of issues with new enrollments on its private.zscaler.com Cloud. Customer Guidance: Customers running App Connector version 52 or earlier should avoid restarting, provisioning, or reprovisioning App Connectors at this time. If no changes are made, existing traffic and connected services remain operational. If you are experiencing an issue or have an urgent need to make changes, please contact support immediately for assistance, as alternative op...
Tel Aviv II (TLV2) Datacenter Scheduled Maintenance - zscloud.net
Started:
investigating
Zscaler will be performing hardware maintenance in Tel Aviv II (TLV2) Datacenter.New Maintenance window, Start: 2026-05-11 01:00 UTC End: 2026-05-11 04:00 UTC (Local Time 2026-05-11 04:00 - 2026-05-11 07:00 Local Time)Update - Mon, 11 May 2026 03:22:55 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Reporting and Logging Issue - private.zscaler.com
Started:
investigating
Zscaler has detected an issue with Reporting and Logging on its private.zscaler.com cloud in US1 Logging Zone. We are investigating periods of slowness, connection timeouts and/or increased latency. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: Intermittent b...
Intermittent Connectivity Issues with Atlassian Jira in Multiple US Regions - zscalertwo.net
Started:
investigating
Zscaler is currently investigating reports of intermittent access issues with Atlassian Jira. Some customers may experience intermittent connectivity issues or timeouts when attempting to access Atlassian Jira.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause- A servic...
ZDX Server Error Issue - zdxcloud.net
Started:
investigating
Zscaler has identified an issue affecting the zdxcloud.net cloud. Customers may encounter ZDX Server Errors; additionally, the ZCC ZDX tab may not display scores or allow tests to run, and the ZDX portal may show gaps or delayed telemetry for impacted devices.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted t...
Planned Maintenance Activity for ZPA platform service - private.zscaler.com
Started:
investigating
We will be performing planned maintenance on our platform infrastructure in the Prod EMEA region to enhance availability and resiliency. Some customers may witness below impact during this maintenance window:Momentary disconnect and auto-reconnect of zcc.Any active session will be disconnected and logged under ZPA User Activity logs as “MT_CLOSED_TLS_CONN_GONE_SCIM_USER_MOVED”Important Note: No action is required from customers and this communication is only intended to in...
Amsterdam II (AMS2) Data Center Issue - zscaler.net, zscalertwo.net, zscalerthree.net
Started:
investigating
Zscaler has detected an issue with its Amsterdam II data center and is currently investigating the matter. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Statu...
Urgent Maintenance - zdxcloud.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on the zdxcloud.net cloud. This maintenance is scheduled for Wednesday at 08:00 PM Pacific Time on May 6, 2026 (Thursday, May 7, 2026 03:00 AM UTC), and can take up to 3 hours to complete.During this maintenance window the ZDX Admin Portal, including policy management, reporting access, and authentication of new users will not be available. As part of our standard maintenance process all logs will be collec...
Shanghai VI Data Center Issue - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler has detected an issue with its Shanghai VI datacenter and is currently investigating the matter. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status ...
Urgent Maintenance - zscalerone.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on zscalerone.net cloud. This maintenance is scheduled for Thursday at 02:30 PM Pacific Time on May 7, 2026 (Thursday, May 7, 2026 09:30 PM UTC), and can take up to 4 hours to complete.During maintenance, which includes the control plane, the Admin Portal might be temporarily placed into read-only mode, making the following unavailable: configuration changes, new user provisioning, and existing user updates...
Hong Kong III Datacenter Scheduled Maintenance – IPv6 Enablement - zscaler.net, zscloud.net
Started:
investigating
Zscaler will perform scheduled maintenance at our Hong Kong III (HKG3) Data Center to complete preparatory work for future IPv6 enablement. During the maintenance window, services through the HKG3 Data Center may be restarted in phases to minimize impact.Other Zscaler sites and services will continue to operate normally.Maintenance Window:Start time is May 7, 9:00 am PDT (May 7, 16:00 UTC)End time is May 7, 4:00 pm PDT (May 7, 23:00 UTC)
Urgent Maintenance Notification – Zero Trust Browser - zscalerthree.net
Started:
investigating
Zscaler will perform urgent maintenance for the Zero Trust Browser service to update a required Zscaler Internet Access (ZIA) certificate on zscalerthree.net cloud.Maintenance Window:May 6, 2026 | 12:00 AM – 02:00 AM UTCExpected Impact:Existing Zero Trust Browser sessions will not be affected during this maintenance activity. Customers initiating new Zero Trust Browser sessions during the maintenance window may experience brief and intermittent access issues while the certificate update is ...
Capetown IV Datacenter Scheduled Maintenance - IPv6 Enablement - zscalerone.net
Started:
investigating
Zscaler will be enabling IPv6 at our Capetown IV (CPT4) Data Center. During the maintenance window the services through CPT4 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is May 7, 9:00 am PDT (May 7, 16:00 UTC)End time is May 7, 2:00 pm PDT (May 7, 21:00 UTC)
Sao Paulo IV Datacenter Scheduled Maintenance - Service Expansion - zscalertwo.net
Started:
investigating
Zscaler will be expanding its global data center footprint and performing maintenance at our Sao Paulo IV (SAO4) data center. We expect minimal to no impact to services during the maintenance window. Please update your firewall policy rules and any upstream Access Control Lists to allow all IP addresses for this DCFor more information, please visit:https://config.zscaler.com/zscalertwo.net/cenrMaintenance Window:Start time is May 5, 6:00 pm PDT (May 6, 1:00 UTC)End time is May 5, 11:00 p...
Sao Paulo IV Datacenter Scheduled Maintenance - IPv6 Enablement - zscalerthree.net
Started:
investigating
Zscaler will be enabling IPv6 at our Sao Paulo IV (SAO4) Data Center. During the maintenance window the services through SAO4 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is May 5, 6:00 pm PDT (May 6, 1:00 UTC)End time is May 5, 11:00 pm PDT (May 6, 6:00 UTC)Update - Wed, 06 May 2026 07:09:06 UTCThis activity has been completed. Please contact Zscaler Suppor...
Kuala Lumpur II (KUL2) Datacenter Network Maintenance - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zpatwo.net
Started:
investigating
Zscaler will be performing hardware maintenance in the Kuala Lumpur II (KUL2) Datacenter.Maintenance window,Start: 2026-05-06 04:00 GMT+8End: 2026-05-06 06:00 GMT+8(i.e. 2026-05-06 20:00 - 22:00 UTC)During this maintenance, traffic will failover to redundant devices in the same datacenter, and we expect no service impact. Update - Wed, 06 May 2026 21:11:55 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Kolkata I (CCU1) Datacenter Network Maintenance - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zpatwo.net
Started:
investigating
Zscaler will be performing hardware maintenance in the Kolkata I (CCU1) Datacenter.Maintenance window,Start: 2026-05-06 01:30 ISTEnd: 2026-05-06 03:30 IST(i.e. 2026-05-06 20:00 - 22:00 UTC)During this maintenance, traffic will failover to redundant devices in the same datacenter, and we expect no service impact. Update - Wed, 06 May 2026 21:11:43 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Tel Aviv II (TLV2) Datacenter Scheduled Maintenance - zscloud.net
Started:
investigating
Zscaler will be performing hardware maintenance in Tel Aviv II (TLV2) Datacenter.New Maintenance window, Start: 2026-05-05 01:00 UTC End: 2026-05-05 04:00 UTC (Local Time 2026-05-05 04:00 - 2026-05-05 07:00 Local Time)
ZPA Logging zone Maintenance - zpatwo.net
Started:
investigating
We will be performing maintenance activities to add a new Logging Zone in ZPATWO cloud to augment capacity, availability and resiliency. Some customers may witness below impact during this maintenance window:Admin UI dashboards and diagnostics may display incomplete data temporarily.If alerts are configured for these components, false events may be triggered.Nanolog enabled customer will see timeouts on the dashboards.Important Note:This maintenance will not impact live traffic. ZCC enrollmen...
Hong Kong III Datacenter Scheduled Maintenance - IPv6 Enablement - zscalertwo.net, zscalerthree.net
Started:
investigating
Zscaler will be enabling IPv6 at our Hong Kong III (HKG3) Data Center. During the maintenance window the services through HKG3 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is May 5, 9:00 am PDT (May 5, 16:00 UTC)End time is May 5, 5:00 pm PDT (May 6, 00:00 UTC)Update 5/5: Extending Maintenance
Helsinki I Datacenter Scheduled Maintenance - IPv6 Enablement - zscaler.net, zscalertwo.net, zscalerthree.net
Started:
investigating
Zscaler will be enabling IPv6 at our Helsinki I (HEL1) Data Center. During the maintenance window the services through HEL1 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is May 7, 9:00 am PDT (May 7,16:00 UTC)End time is May 7, 2:00 pm PDT (May 7, 21:00 UTC)
Helsinki I Datacenter Scheduled Maintenance - Service Expansion - zscloud.net
Started:
investigating
Zscaler will be expanding its global data center footprint and performing maintenance at our Helsinki I (HEL1) data center. We expect minimal to no impact to services during the maintenance window. Please update your firewall policy rules and any upstream Access Control Lists to allow all IP addresses for this DCFor more information, please visit:https://config.zscaler.com/zscloud.net/cenrMaintenance Window:Start time is May 7, 9:00 am PDT (May 7, 16:00 UTC)End time is May 7, 2:00 pm PDT...
Copenhagen II Datacenter Scheduled Maintenance - IPv6 Enablement - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler will be enabling IPv6 at our Copenhagen II (CPH2) Data Center. During the maintenance window the services through CPH2 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is May 8, 9:00 am PDT (May 8, 16:00 UTC)End time is May 8, 2:00 pm PDT (May 8, 21:00 UTC)
Security Advisory: Linux Kernel Vulnerability (CVE-2026-31431) - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zdxcloud.net, zpatwo.net, app.zsdpc.net, app.eu.zsdpc.net, zpabeta.net, zsdkone.net, zscalerrisk.net, admin.zscaleranalytics.net, zslogin.net
Started:
investigating
On April 29, 2026, Zscaler was made aware of CVE-2026-31431, a Local Privilege Escalation (LPE) vulnerability affecting Linux kernel versions 4.14 and later. Zscaler has addressed the vulnerability across all its clouds through patching or mitigation. Zscaler Internet Access (ZIA) distributed products are not impacted. Zscaler suggests adhering to the instructions issued by the operating system vendors for any Linux systems and Zscaler products listed below:Zscaler Private Access (ZPA):&...
April 2026
Capetown IV Datacenter Scheduled Maintenance - IPv6 Enablement - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler will be enabling IPv6 at our Capetown IV (CPT4) Data Center. During the maintenance window the services through CPT4 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is May 7, 9:00 am PDT (May 7, 16:00 UTC)End time is May 7, 2:00 pm PDT (May 7, 21:00 UTC)
Amsterdam II Datacenter Scheduled Maintenance - IPv6 Enablement - zscaler.net, zscalertwo.net, zscalerthree.net
Started:
investigating
Zscaler will be enabling IPv6 at our Amsterdam II (AMS2) Data Center. During the maintenance window the services through AMS2 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is May 6, 10:00 am PDT (May 6, 17:00 UTC)End time is May 6, 3:00 pm PDT (May 6, 22:00 UTC)
Los Angeles II Datacenter Scheduled Maintenance - IPv6 Enablement - zscaler.net, zscalertwo.net, zscloud.net
Started:
investigating
Zscaler will be enabling IPv6 at our Los Angeles II (QLA2) Data Center. During the maintenance window the services through QLA2 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is May 5, 6:00 pm PDT (May 6, 1:00 UTC)End time is May 5, 11:00 pm PDT (May 6, 6:00 UTC)
Hyderabad I Datacenter Scheduled Maintenance - IPv6 Enablement - zscaler.net, zscloud.net
Started:
investigating
Zscaler will be enabling IPv6 at our Hyderabad I (HYD1) Data Center. During the maintenance window the services through HYD1 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is May 4, 9:00 am PDT (May 4, 16:00 UTC)End time is May 4, 2:00 pm PDT (May 4, 21:00 UTC)
Los Angeles I Datacenter Scheduled Maintenance - IPv6 Enablement - zscaler.net, zscalertwo.net, zscloud.net
Started:
investigating
Zscaler will be enabling IPv6 at our Los Angeles I (QLA1) Data Center. During the maintenance window the services through QLA1 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is May 4, 9:00 pm PDT (May 5, 4:00 UTC)End time is May 5, 3:00 am PDT (May 5, 10:00 UTC)
Manchester I (MAN1) Datacenter Network Maintenance - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zpatwo.net
Started:
investigating
Zscaler will be performing hardware maintenance in the Manchester I (MAN1) Datacenter.Maintenance window,Start: 2026-05-06 23:00 BSTEnd: 2026-05-07 03:00 BST(i.e. 2026-05-06 22:00 - 2026-05-07 02:00 UTC)During the maintenance, traffic will failover to redundant devices in the same datacenter. However, intermittent connections and connection reestablishment may be observed.
Hong Kong III Datacenter Scheduled Maintenance – IPv6 Enablement - zscalertwo.net, zscalerthree.net
Started:
investigating
Zscaler will perform scheduled maintenance at our Hong Kong III (HKG3) Data Center to complete preparatory work for future IPv6 enablement. During the maintenance window, services through the HKG3 Data Center may be restarted in phases to minimize impact.Other Zscaler sites and services will continue to operate normally.Maintenance Window:Start time is May 1, 9:00 am PDT (May 1, 16:00 UTC)End time is May 1 2:00 pm PDT (May 1, 21:00 UTC)
Cellular Portal Migration to Experience Center - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zdxcloud.net, zpatwo.net, zslogin.net
Started:
investigating
Zscaler Cellular Portal is Being disabled—Move to Experience Center by May 15, 2026What is changing?Effective May 15, 2026, Zscaler is disabling the Zscaler Cellular Portal at https://admin.ztsim.com. After this date, the Zscaler Cellular Portal will no longer be available for managing or monitoring Zscaler Cellular services.To continue administering and gaining visibility into Zscaler Cellular services, customers must use Zscaler Experience Center at https://console.zsc...
Tokyo IV Datacenter Scheduled Maintenance - Service Expansion - zscalerthree.net
Started:
investigating
Zscaler will be expanding its global data center footprint and performing maintenance at our Tokyo IV (TYO4) data center. We expect minimal to no impact to services during the maintenance window. Please update your firewall policy rules and any upstream Access Control Lists to allow all IP addresses for this DCFor more information, please visit:https://config.zscaler.com/zscalerthree.net/cenrMaintenance Window:Start time is May 1, 8:00 am PDT (May 1,15:00 UTC)End time is May 1, 2:00 pm P...
Tokyo V Datacenter Scheduled Maintenance - Service Expansion - zscaler.net, zscalerthree.net
Started:
investigating
Zscaler will be expanding its global data center footprint and performing maintenance at our Tokyo V (TYO5) data center. We expect minimal to no impact to services during the maintenance window. Please update your firewall policy rules and any upstream Access Control Lists to allow all IP addresses for this DCFor more information, please visit:https://config.zscaler.com/zscaler.net/cenrhttps://config.zscaler.com/zscalerthree.net/cenrMaintenance Window:Start time is May 1, 8:00 am PDT (Ma...
Tokyo V Datacenter Scheduled Maintenance - IPv6 Enablement - zscaler.net, zscalerthree.net
Started:
investigating
Zscaler will be enabling IPv6 at our Tokyo V (TYO5) Data Center. During the maintenance window the services through TYO5 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is May 1, 8:00 pm PDT (May 1,15:00 UTC)End time is May 1, 2:00 pm PDT (May 1, 21:00 UTC)
New Delhi I Datacenter Scheduled Maintenance - IPv6 Enablement - zscalertwo.net, zscloud.net
Started:
investigating
Zscaler will be enabling IPv6 at our New Delhi I (DEL1) Data Center. During the maintenance window the services through DEL1 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is May 1, 9:00 am PDT (May 1, 16:00 UTC)End time is May 1, 2:00 pm PDT (May 1, 21:00 UTC)
Madrid IV Data Center issue - zscalertwo.net
Started:
investigating
Zscaler has detected an issue with its Madrid IV data center on the zscalertwo.net cloud and is currently investigating the matter. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer su...
Seattle Datacenter Issue - zscaler.net
Started:
investigating
Zscaler has detected an issue with its Seattle datacenter and is currently investigating the matter. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status chan...
Beijing V Data Center Issue - zscalertwo.net, zscloud.net
Started:
investigating
Zscaler has detected an issue with its Beijing V data center and is currently investigating the matter. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status c...
Datacenter Expansion Kuala Lampur II (KUL2) - private.zscaler.com, zpatwo.net
Started:
investigating
As part of our regular expansion of capacity, we are adding ZPA Public Service Edge nodes to our new data center in Kuala Lampur II (KUL2).These would be available anytime on or after May 1, 2026.RegionLocationNotesAPACKUALA LAMPUR IINew DCThe IP addresses for the DC are part of the already published IP address range.Please update your firewall policy rules along with any upstream ACL(s) to allow the IP address ranges to avoid any service disruption.For more information, please visit:https://...
Reminder Notification for Upcoming Data Center Expansions - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zpatwo.net
Started:
investigating
Dear Customer, In accordance with the Zscaler Service Continuity Policy and as previously announced via email notification and Trust on March 13, 2026, we would like to remind you of the upcoming data center expansions at the locations listed below. These would be effective anytime on or after May 12, 2026.Please update your firewall policy rules and any upstream access control lists to allow the new IP address ranges to avoid any service disruption.RegionLocationCIDR...
Singapore IV Datacenter Issue - zscalertwo.net
Started:
investigating
Zscaler is currently investigating reports of an issue with its Singapore IV datacenter. A subset of customers may encounter disconnections, periods of slowness or increased latency. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the...
Release Upgrade for Zscaler Data Security Posture Management (DSPM) - app.eu.zsdpc.net
Started:
investigating
Zscaler Data Posture Control (DSPM) Operations team will be performing a planned upgrade activity on April 27th, 2026. These service updates are applied in regional off-peak hours and should not result in any downtime for customers. Please reach out to Customer support for more information about the changes.Update - Mon, 27 Apr 2026 06:16:08 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
URL and Cloud App category classification issue - zscalerthree.net
Started:
investigating
Zscaler is currently investigating reports of an issue with its Mumbai VI datacenter. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and updates...
Degradation with international destinations from Beijing, Beijing III, Shanghai and Shanghai II Data Centers - zscaler.net, zscalertwo.net, zscloud.net
Started:
investigating
Zscaler is currently investigating reports of an issue with its Beijing, Beijing III, Shanghai and Shanghai II data centers. We are investigating periods of slowness, connection timeouts and/or increased latency. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For deta...
Operational Resilience Update: Managing Subsea Cable Risk in the Persian Gulf and Beyond - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zdxcloud.net, zpatwo.net, app.zsdpc.net, app.eu.zsdpc.net, zpabeta.net, zsdkone.net, zscalerrisk.net, admin.zscaleranalytics.net, zslogin.net
Started:
investigating
Current geopolitical conditions have elevated the risk of potential disruptions to subsea cable infrastructure in the Persian Gulf region.If such events occur, we would expect the primary impact to be localized within the Gulf, including countries such as Iran, Iraq, Qatar, Kuwait, and to a lesser extent the UAE and Saudi Arabia. The most likely effect would be reduced capacity or constrained routing options, which may result in localized performance degradation rather than widespread outages...
Singapore IV Datacenter Issue - zscalertwo.net
Started:
investigating
Zscaler has detected an issue with our Singapore IV datacenter and is currently investigating the matter. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status...
Release Upgrade for Zscaler Data Security Posture Management (DSPM) - app.zsdpc.net
Started:
investigating
Zscaler Data Posture Control (DSPM) Operations team will be performing a planned upgrade activity on April 22nd, 2026. These service updates are applied in regional off-peak hours and should not result in any downtime for customers. Please reach out to Customer support for more information about the changes.Update - Wed, 22 Apr 2026 06:25:15 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Migration Notice: VPN (for Legacy Apps) - Upgrading VPN Service Edge/Network Connector - private.zscaler.com, zpatwo.net, zpabeta.net
Started:
investigating
Upgrading VPN Service Edge/Network Connector from Previous Generation to Next Generation with BGP SupportAs part of Zscaler’s ongoing efforts to standardize and modernize its public cloud infrastructure, customers currently using the previous generation VPN Service Edge and Network Connectors are required to migrate to the next generation VPN Service Edge with BGP support, along with Network Connectors that support BGP.The next generation VPN Service Edge and Network Connectors offer enhanc...
Zscaler Client Connector for Virtual Desktop Infrastructure (VDI) Deployment Issue - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler detected an issue where the existing access token that was generated before April 11, 2026 can not be used to deploy Zscaler Client Connector for VDI. As a workaround customers can create a new access token while the Zscaler team investigates and fixes the issue. We will continue to provide updates here as the investigation progresses. Status changes and additional details will be posted there as they become available.Customer Impact: Customers won’t be able to deploy Zsca...
Urgent Maintenance on zdxcloud.net - zdxcloud.net
Started:
investigating
The Zscaler SRE team will be performing an urgent maintenance on the zdxcloud.net cloud. This maintenance is scheduled for Monday at 08:00 AM UTC on April 20, 2026, and can take up to 1 hour to complete. During this maintenance window the ZDX Admin Portal, including policy management, reporting access, and authentication of new users will not be available. As part of our standard maintenance process all logs will be collected and available after maintenance has completed.Update - Mon, 20 Apr ...
Urgent Maintenance on zdxcloud.net - zdxcloud.net
Started:
investigating
The Zscaler SRE team will be performing an urgent maintenance on the zdxcloud.net cloud. This maintenance is scheduled for Monday at 03:15 AM UTC on April 20, 2026, and can take up to 1 hour to complete. During this maintenance window the ZDX Admin Portal, including policy management, reporting access, and authentication of new users will not be available. As part of our standard maintenance process all logs will be collected and available after maintenance has completed.Update - Mon, 20 Apr ...
ZDX Call Quality Monitoring Issue - zdxcloud.net
Started:
investigating
Zscaler has identified an issue affecting the Call Quality Monitoring (CQM) feature on the zdxcloud.net cloud. While customers can still access the ZDX portal, they may find Zoom CQM data unavailable or observe missing call quality information. This is a temporary condition, and data is expected to be available later. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (...
Kuala Lumpur I Datacenter Issue - zscaler.net
Started:
investigating
Zscaler has detected an issue with our Kuala Lumpur I datacenter and is currently investigating the matter. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Stat...
Mumbai VI Data Center Issue - zscaler.net
Started:
investigating
Zscaler has detected an issue with its Mumbai VI datacenter and is currently investigating the matter. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status ch...
Urgent Maintenance - zscalerthree.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on zscalerthree.net cloud. This maintenance is scheduled for Saturday at 06:00 AM Pacific Time on April 18, 2026 (Saturday, April 18, 2026 01:00 PM UTC), and can take up to 4 hours to complete.During maintenance, which includes the control plane, the Admin Portal might be temporarily placed into read-only mode, making the following unavailable: configuration changes, new user provisioning, and existing user...
Reminder Notification for Upcoming New DCs and Expansions - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zpatwo.net
Started:
investigating
Dear Customer, In accordance with the Zscaler Service Continuity Policy and as previously announced via email notification and Trust on March 3, 2026, we would like to remind you of the upcoming New DCs and expansions at the locations listed below. These would be available anytime on or after May 2, 2026Please update your firewall policy rules and any upstream access lists to allow the new IP address ranges to avoid any service disruption.RegionLocationCIDRNotesAmeric...
Zscaler Client Connector for VDI Deployment Issue - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zdxcloud.net, zpatwo.net, zslogin.net
Started:
investigating
Zscaler detected an issue where the existing access token that was generated before April 11 can not be used to deploy Zscaler Client Connector. As a workaround customers can create a new access token while the Zscaler team investigates and fixes the issue. Affected Services: Zscaler Client Connector for VDIWorkaround: - Generate a new access token from the Cloud and Branch Connector portal (Administration > VDI Templates) and use the new token for any new deployments- For non-pe...
Urgent Scheduled Maintenance - zscalerone.net
Started:
investigating
Zscaler is performing a service upgrade on Saturday at 6:00 AM PDT on April 18, 2026 (Saturday, April 18, 2026 , 01:00 PM UTC), and is expected to last up to 4 hours.During this maintenance period, the Zscaler Client Connector Portal will be in maintenance mode. As a result, access to policy management and reporting will not be available. Existing devices that are already enrolled will not be affected, but there may be intermittent failures in registering new devices. Rest assured, all logs w...
Helsinki I (HEL1) Datacenter Network Maintenance - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com
Started:
investigating
Zscaler will be performing hardware maintenance in the Helsinki I (HEL1) Datacenter.Maintenance window,Start: 2026-04-17 21:00 EESTEnd: 2026-04-18 01:00 EEST(i.e. 2026-04-17 18:00 - 22:00 UTC)During this maintenance, traffic will failover to redundant devices in the same datacenter, and we expect no service impact. Update - Fri, 17 Apr 2026 20:03:32 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Stockholm III (STO3) Datacenter Network Maintenance - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com
Started:
investigating
Zscaler will be performing hardware maintenance in the Stockholm III (STO3) Datacenter.Maintenance window,Start: 2026-04-17 20:00 CESTEnd: 2026-04-18 00:00 CEST(i.e. 2026-04-17 18:00 - 22:00 UTC)During this maintenance, traffic will failover to redundant devices in the same datacenter, and we expect no service impact. Update - Fri, 17 Apr 2026 20:05:32 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Risk360 – Data Loading issue - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, zscalerrisk.net
Started:
investigating
Zscaler is currently investigating an issue causing computation delays. Latest risk scores and insights may be outdated or unavailable at this time. During this time, your dashboard may reflect historical data; however, your actual security posture and traffic protection are unaffected. We are currently validating a performance optimization and will restore real-time scoring. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Servi...
UI Node will stop supporting Public API Traffic - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler is announcing the official retirement of UI nodes for servicing Public API traffic. Currently, some Public API traffic lands on UI nodes instead of the designated Zscaler API (ZSAPI) nodes. To ensure optimal performance and alignment with our architectural standards, UI nodes will stop servicing Public API calls starting September 01, 2026. This follows the initial announcement of the ZSAPI framework transition made in April 2021 under the section Updates to Cloud Servi...
Urgent Maintenance - zscalerone.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on zscalerone.net cloud. This maintenance is scheduled for Friday at 01:00 AM Pacific Time on April 17, 2026 (Friday, April 17, 2026 08:00 AM UTC), and can take up to 4 hours to complete.During maintenance, which includes the control plane, the Admin Portal might be temporarily placed into read-only mode, making the following unavailable: configuration changes, new user provisioning, and existing user updat...
Administration UI and User Authentication Issues - zscalerthree.net
Started:
investigating
Zscaler has detected an issue with the administration UI and user authentication on its zscalerthree.net Cloud. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause- The preliminary root cause of this issue is attributed to a fault in the control plane.Latest Update ...
New Delhi I (DEL1) Datacenter Network Maintenance - zscloud.net
Started:
investigating
Zscaler will be performing hardware maintenance in the New Delhi I (DEL1) Datacenter.Maintenance window,Start: 2026-04-17 19:30:00 ISTEnd: 2026-04-17 23:30 IST(i.e. 2026-04-17 14:00 - 18:00 UTC)During the maintenance, traffic will failover to redundant devices in the same datacenter. However, intermittent connections and connection reestablishment may be observed.[NOTE: EXTENDING MAINTENANCE AN ADDITIONAL TWO HOURS]Update - Fri, 17 Apr 2026 18:12:50 UTCThis activity has been completed. Please...
Upcoming Data Center Expansion in Zpa - private.zscaler.com
Started:
investigating
As part of our regular expansion of capacity, we are adding additional ZPA Public Service Edge nodes to our existing data center in Chicago II (CHI2) for Zpa cloud.These would be available anytime on or after April 15, 2026.RegionLocationNotesAMERICASCHICAGO IIExpansion of Existing DCThe IP addresses for the DC are part of the already published IP address range.Please update your firewall policy rules along with any upstream ACL(s) to allow the IP address ranges to avoid any service disruptio...
Upcoming Data Center Expansions in ZpaTwo - zpatwo.net
Started:
investigating
As part of our regular expansion of capacity, we are adding ZPA Public Service Edge nodes to our new data center in Chicago II (CHI2) for ZpaTwo cloud.These would be available anytime on or after April 15, 2026.RegionLocationNotesAMERICASCHICAGO IINew DCThe IP addresses for the DC are part of the already published IP address range.Please update your firewall policy rules along with any upstream ACL(s) to allow the IP address ranges to avoid any service disruption.For more information, please ...
Data Center Expansions in ZPATWO - zpatwo.net
Started:
investigating
Dear Zscaler Customer,We would like to notify you of the public service edge expansions at the locations listed below. These were brought online recently.RegionLocationNotesAPACSydney VNew DCEMEAWarsaw IINew DCThe IP addresses for these DCs are part of the already published IP address range.Please update your firewall policy rules along with any upstream ACL(s) to allow the IP address ranges to avoid any service disruption.For more information, please visit:https://config.zscaler.com/zp...
Data Center Expansions in ZPA - private.zscaler.com
Started:
investigating
Dear Zscaler Customer,We would like to notify you of the public service edge expansions at the locations listed below. These were brought online recently. RegionLocationNotesAPACSydney VNew DCEMEAWarsaw IIExpansion of Existing DCThe IP addresses for these DCs are part of the already published IP address range.Please update your firewall policy rules along with any upstream ACL(s) to allow the IP address ranges to avoid any service disruption.For more information, please visit:https...
New Delhi I (DEL1) Datacenter Network Maintenance - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com
Started:
investigating
Zscaler will be performing hardware maintenance in New Delhi I (DEL1) Datacenter.Maintenance window: Start: 2026-04-20 14:30 UTC End: 2026-04-20 17:30 UTC (Local Time 2026-04-20 20:00 - 2026-04-20 23:00 IST)
Chennai II (MAA2) Datacenter Network Maintenance - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com
Started:
investigating
Zscaler will be performing hardware maintenance in Chennai II (MAA2) Datacenter.Maintenance window: Start: 2026-04-17 14:30 UTC End: 2026-04-17 17:30 UTC (Local Time 2026-04-17 20:00 - 2026-04-17 23:00 IST)
Administration UI and Mobile Admin Portal Issue - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler is currently investigating reported issues impacting the Administration UI and Mobile Admin Portal on the zscaler.net, zscalertwo.net, and zscalerthree.net clouds. Customers may experience intermittent slowness, timeouts, and/or increased latency when accessing the Admin UI and/or Mobile Admin Portal. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP)...
Scheduled Maintenance on AMER region's Egress NAT nodes - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be performing a scheduled maintenance on the AMER region's Egress NAT nodes on zscalerone.net, zscalertwo.net, zscalerthree.net, zscloud.net and zscaler.net clouds. This maintenance is scheduled for Sunday at 2:00 AM Pacific Time on Apr 19, 2026 (Sunday, Apr 19, 2026 09:00 AM UTC), and can take up to 4 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available after ma...
Scheduled Maintenance on EMEA region's Egress NAT nodes - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be performing a scheduled maintenance on the EMEA region's Egress NAT nodes on zscalerone.net, zscalertwo.net, zscalerthree.net, zscloud.net and zscaler.net clouds. This maintenance is scheduled for Saturday at 6:00 PM Pacific Time on Apr 18, 2026 (Sunday, Apr 19, 2026 01:00 AM UTC), and can take up to 4 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available after ...
Scheduled Maintenance on APAC region's Egress NAT nodes - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be performing a scheduled maintenance on the APAC region's Egress NAT nodes on zscalerone.net, zscalertwo.net, zscalerthree.net, zscloud.net and zscaler.net clouds. This maintenance is scheduled for Saturday at 6:00 AM Pacific Time on Apr 18, 2026 (Saturday, Apr 18, 2026 01:00 PM UTC), and can take up to 4 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available afte...
Scheduled Maintenance on Oceania region's Egress NAT nodes - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be performing a scheduled maintenance on the Oceania region's Egress NAT nodes on zscalerone.net, zscalertwo.net, zscalerthree.net, zscloud.net and zscaler.net clouds. This maintenance is scheduled for Saturday at 2:00 AM Pacific Time on Apr 18, 2026 (Saturday, Apr 18, 2026 09:00 AM UTC), and can take up to 4 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available a...
Performance Degradation Impacting Case Creation - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zdxcloud.net, zpatwo.net, app.zsdpc.net, app.eu.zsdpc.net, zpabeta.net, zsdkone.net, zscalerrisk.net, admin.zscaleranalytics.net, zslogin.net
Started:
investigating
Zscaler is currently aware of a performance degradation affecting case creation, associated with a third-party service provider. At this time, core Zscaler services, including the data plane and control plane, continue to operate normally. We are actively collaborating with the impacted service provider, who has acknowledged the issue within their managed infrastructure and is working toward resolution. The service provider has identified the underlying cause and initiated remediation actions...
Certificate Signing Request (CSR) Issue - zscaler.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler is currently investigating reports of issues with the administration UI on its Cloud. Some customers may be unable to create a new Certificate Signing Request (CSR) because the option is greyed out. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Latest Update - We...
Administration UI Issue - zscloud.net
Started:
investigating
Zscaler has detected an issue with the administration UI on its zscloud.net Cloud. Customers may encounter slowness issues logging into Administration UI and Zscaler Client Connector portal.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause- A surge in authenticat...
Brussels (BRU2) Datacenter Network Maintenance - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com
Started:
investigating
Zscaler will be performing hardware maintenance in the Brussels II (BRU2) Datacenter.Maintenance window,Start: 2026-04-17 21:00 CESTEnd: 2026-04-17 23:00 CEST(i.e. 2026-04-17 19:00 - 21:00 UTC)During this maintenance, traffic will failover to redundant devices in the same datacenter, and we expect no service impact.
ZDX Admin Portal – Reporting and Logging Delay - zdxcloud.net
Started:
investigating
Zscaler has detected an issue with Reporting and Logging on its zdxcloud.net Cloud. Customers may experience a temporary delay in reporting data.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root cause- The incident was caused by a performance bottleneck within our backend sy...
User Authentication Issues - zscalerthree.net
Started:
investigating
Zscaler has detected an user authentication issue on its zscalerthree.net Cloud. Customer might experience issues with user authentication services, impacting Zscaler Client Connector (ZCC) login, web traffic authentication and Zscaler Client Connector portal.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be pos...
Administration UI and User Authentication Issues - zscalerthree.net
Started:
investigating
Zscaler has detected an issue with its zscalerthree.net Cloud. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: The preliminary root cause of this issue is attributed to a fault in the control plane.Update - Sat, 11 Apr 2026 02:37:12 UTCZscaler observed an issue affe...
Munich I Datacenter Scheduled Maintenance - IPv6 Enablement - zscloud.net
Started:
investigating
Zscaler will be enabling IPv6 at our Munich I (MUC1) Data Center. During the maintenance window the services through MUC1 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is April 14, 1:30 pm PDT (April 14, 20:30 UTC)End time is April 14, 6:00 pm PDT (April 15, 1:00 UTC)
Scheduled Maintenance Extended - EMEA Region - zscaler.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be extending the scheduled maintenance of the EMEA region data centers on zscaler.net cloud by 3 hours. During this extended maintenance window the ZIA Admin Portal, including policy management and reporting access, and new user authentication should be successful. As part of our standard maintenance process, all logs will be collected and available after maintenance has been completed.Update - Sat, 11 Apr 2026 01:02:06 UTCThis activity has b...
Atlanta II Datacenter Scheduled Maintenance - IPv6 Enablement - zscaler.net, zscalertwo.net, zscloud.net
Started:
investigating
Zscaler will be enabling IPv6 at our Atlanta II (ATL2) Data Center. During the maintenance window the services through ATL2 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is April 16, 6:00 pm PDT (April 17, 1:00 UTC)End time is April 17, 12:00 am PDT (April 17, 7:00 UTC)
Auckland II Datacenter Scheduled Maintenance - IPv6 Enablement - zscaler.net, zscalertwo.net, zscloud.net
Started:
investigating
Zscaler will be enabling IPv6 at our Auckland II (AKL2) Data Center. During the maintenance window the services through AKL2 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is April 16, 6:00 am PDT (April 16, 13:00 UTC)End time is April 16, 11:00 am PDT (April 16, 18:00 UTC)
Boston I Datacenter Scheduled Maintenance - IPv6 Enablement - zscaler.net
Started:
investigating
Zscaler will be enabling IPv6 at our Boston I (BOS1) Data Center. During the maintenance window the services through BOS1 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is April 15, 6:00 pm PDT (April 16, 13:00 UTC)End time is April 15, 11:00 pm PDT (April 16, 18:00 UTC)
Amsterdam III Datacenter Scheduled Maintenance - IPv6 Enablement - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler will be enabling IPv6 at our Amsterdam III (AMS3) Data Center. During the maintenance window the services through AMS3 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is April 15, 1:30 pm PDT (April 15, 20:30 UTC)End time is April 15, 6:30 pm PDT (April 16, 1:30 UTC)
Tokyo IV Datacenter Scheduled Maintenance - IPv6 Enablement - zscloud.net
Started:
investigating
Zscaler will be enabling IPv6 at our Tokyo IV (TYO4) Data Center. During the maintenance window the services through TYO4 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is April 14, 9:00 pm PDT (April 14, 16:00 UTC)End time is April 14, 2:00 pm PDT (April 14, 21:00 UTC)
Denver III (DEN3) Datacenter Network Maintenance - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler will be performing hardware maintenance in Denver III (DEN3) Datacenter .Maintenance window: Start: 2026-04-13 05:00 UTC End: 2026-04-13 08:00 UTC (Local Time 2026-04-12 23:00 - 2026-04-13 02:00)Update - Mon, 13 Apr 2026 06:03:07 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Scheduled Maintenance Extended - EMEA Region - zscloud.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be extending the scheduled maintenance of the EMEA region's datacenters on zscloud.net cloud by 3 hours. During this extended maintenance window the ZIA Admin Portal, including policy management and reporting access, and new user authentication should be successful. As part of our standard maintenance process, all logs will be collected and available after maintenance has been completed.Update - Fri, 10 Apr 2026 01:49:29 UTCThis activity has ...
China Premium Access Plus Beijing V and Shanghai VI Datacenter Network Maintenance - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Beijing V and Shanghai VI DC network providers have advised maintenance work as below. During the maintenance window, China Premium Access Plus services within these data centres may experience intermittent disconnections.Start Time: 2026-06-05 16:00:00 UTCEnd Time: 2026-06-05 20:00:00 UTC(Datacenter Local Time 2026-06-06 00:00 - 2026-06-06 04:00 China Standard Time (UTC+8:00))Reason of Maintenance: Provider advised maintenance.Impact During Maintenance: Intermittent connectivity might ...
Urgent Maintenance - zscalerone.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on zscalerone.net cloud. This maintenance is scheduled for Friday at 01:00 AM Pacific Time on April 10, 2026 (Friday, April 10, 2026 08:00 AM UTC), and can take up to 4 hours to complete.During maintenance, which includes the control plane, the Admin Portal might be temporarily placed into read-only mode, making the following unavailable: configuration changes, new user provisioning, and existing user updat...
Urgent Maintenance - zdxcloud.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on the zdxcloud.net cloud. This maintenance is scheduled for Thursday at 03:00 PM Pacific Time on April 9, 2026 (Thursday, April 9, 2026 10:00 PM UTC), and can take up to 2 hours to complete.During this maintenance window the ZDX Admin Portal, including policy management, reporting access, and authentication of new users will not be available. As part of our standard maintenance process all logs will be col...
Chicago I (CHI1) Datacenter Network Maintenance - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zdxcloud.net, zpatwo.net
Started:
investigating
Zscaler will be performing hardware maintenance in the Chicago I (CHI1) Datacenter.Maintenance window,Start: 2026-4-13 03:00 CDTEnd: 2026-4-13 05:00 CDT(i.e. 2026-4-13 08:00 - 10:00 UTC)No service impact is expected during this maintenance.
Maintenance Window Updates - zscalerthree.net
Started:
investigating
Zscaler is updating the maintenance window schedule for Oceania, APAC and AMER regions. The new schedule is effective starting April 23, 2026. Service updates for all regions will be recurring.Time (in UTC- Coordinated Universal Time)REGIONMONTUESWEDTHUFRISATSUNOceania 9:00 AM – 11:00 AM9:00 AM – 11:00 AM9:00 AM – 12:00 PM 9:00 AM – 12:00 PM Asia Pacific8:00 PM – 10:00 PM8:00 PM – 10:00 PM8:00 PM – 10:00 PM4:00 PM – 7:00 PM 1:00 PM - 4:00 PM3:00 PM – 6:00...
Maintenance Window Updates - zscloud.net
Started:
investigating
Zscaler is updating the maintenance window schedule for Oceania, APAC and AMER regions. The new schedule is effective starting April 23, 2026. Service updates for all regions will be recurring. Time(in UTC- Coordinated Universal Time)REGIONMONTUESWEDTHUFRISATSUNOceania 9:00 AM – 11:00 AM9:00 AM – 11:00 AM9:00 AM – 12:00 PM 9:00 AM – 12:00 PM Asia Pacific8:00 PM – 10:00 PM8:00 PM – 10:00 PM8:00 PM – 10:00 PM4:00 PM – 7:00 PM 1:00 PM - 4:00 PM3:00 PM –...
Maintenance Window Updates - zscalertwo.net
Started:
investigating
Zscaler is updating the maintenance window schedule for Oceania, EMEA and AMER regions. The new schedule is effective starting April 23, 2026. Service updates for all regions will be recurring.Time (in UTC- Coordinated Universal Time)REGIONMONTUESWEDTHUFRISATSUNOceania 9:00 AM – 11:00 AM9:00 AM – 11:00 AM 9:00 AM – 12:00 PM9:00 AM – 12:00 PM Asia Pacific8:00 PM – 10:00 PM8:00 PM – 10:00 PM8:00 PM – 10:00 PM 4:00 PM – 7:00 PM1:00 PM -4:00 PM EMEA8:00 PM...
Maintenance Window Updates - zscaler.net
Started:
investigating
Zscaler is updating the maintenance window schedule for Oceania, APAC, EMEA and AMER regions. The new schedule is effective starting April 23, 2026. Service updates for all regions will be recurring.Time (in UTC- Coordinated Universal Time)REGIONMONTUESWEDTHUFRISATSUNOceania 9:00 AM – 11:00 AM9:00 AM – 11:00 AM 9:00 AM – 12:00 PM9:00 AM– 12:00 PM9:00 AM– 12:00 PMAsia Pacific8:00 PM – 10:00 PM8:00 PM – 10:00 PM8:00 PM – 10:00 PM 4:00 PM – 7:00 PM1:00 PM– 4:00...
Maintenance Window Updates - zscalerone.net
Started:
investigating
Zscaler is updating the maintenance window schedule for Oceania, EMEA and AMER regions. The new schedule is effective starting April 23, 2026. Service updates for all regions will be recurring.Time(in UTC- Coordinated Universal Time)REGIONMONTUESWEDTHUFRISATSUNOceania 9:00 AM – 11:00 AM9:00 AM – 11:00 AM 9:00 AM – 12:00 PM9:00 AM – 12:00 PM EMEA 1:00 AM– 4:00 AMAMER 6:00 AM – 8:00 AM6:00 AM – 8:00 AM6:00 AM – 8:00 AM ...
Delay in Processing Inbound Emails to Support Cases - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zdxcloud.net, zpatwo.net, app.zsdpc.net, app.eu.zsdpc.net, zpabeta.net, zsdkone.net, zscalerrisk.net, admin.zscaleranalytics.net, zslogin.net
Started:
investigating
Zscaler is aware of an issue impacting delay in processing inbound emails to support cases.Zscaler services are operating normally; delays are currently impacting the synchronization of inbound email communications related to support cases. This is due to a dependency issue with our service provider that is affecting email processing, leading to slower updates. Zscaler is actively coordinating with the service provider to restore normal functionality.Impact: During this time, customers m...
Scheduled Maintenance - zscaler.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be performing a scheduled maintenance on zscaler.net cloud. This maintenance is scheduled for Saturday at 06:00 AM Pacific Time on April 11, 2026 (Saturday, April 11, 2026 01:00 PM UTC), and can take up to 4 hours to complete.During maintenance, which includes the control plane, the Admin Portal might be temporarily placed into read-only mode, making the following unavailable: configuration changes, new user provisioning, and existing user up...
IdP-initiated Authentication Issue - zscaler.net, zscloud.net
Started:
investigating
Zscaler is currently investigating reports of issues with its zscaler.net, zscloud.net Cloud. Customers using IdP-initiated authentication may experience login failures.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: The issue occurred due to a recently enabled feat...
Kolkata I (CCU1) Datacenter Network Maintenance - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com
Started:
investigating
Zscaler will be performing hardware maintenance in Kolkata I (CCU1) Datacenter.Maintenance window: Start: 2026-04-14 14:30 UTC End: 2026-04-14 17:30 UTC (Local Time 2026-04-14 20:00 - 2026-04-14 23:00 IST)
London V Datacenter Scheduled Maintenance - IPv6 Enablement - zscalertwo.net
Started:
investigating
Zscaler will be enabling IPv6 at our London V (LON5) Data Center. During the maintenance window the services through LON5 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is April 10, 2:00 pm PDT (April 10, 21:00 UTC)End time is April 10, 6:00 pm PDT (April 11, 1:00 UTC)Update 4/8: Maintenance Window Updated
IdP-initiated Authentication Issue - zscaler.net, zscloud.net
Started:
investigating
Zscaler is currently investigating reports of issues with its zscaler.net, zscloud.net Cloud. Customers using IdP-initiated authentication may experience login failures.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause - The issue occurred due to a recently enabl...
Munich I Datacenter Scheduled Maintenance – IPv6 Enablement - zscloud.net
Started:
investigating
Zscaler will perform scheduled maintenance at our Munich I (MUC1) Data Center to complete preparatory work for future IPv6 enablement. During the maintenance window, services through the MUC1 Data Center may be restarted in phases to minimize impact.Other Zscaler sites and services will continue to operate normally.Maintenance Window:Start time is April 7, 1:00 pm PDT (April 7, 20:00 UTC)End time is April 7, 6:00 pm PDT (April 8, 1:00 UTC)Update - Tue, 07 Apr 2026 23:41:56 UTCThis activ...
China Premium Access Plus Beijing V and Shanghai VI Datacenter Network Maintenance - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Beijing V and Shanghai VI DC network providers have advised maintenance work as below. During the maintenance window, China Premium Access Plus services within these data centres may experience intermittent disconnections.Start Time: 2026-04-12 12:00:00 UTCEnd Time: 2026-04-12 14:00:00 UTC(Datacenter Local Time 2026-04-12 20:00 - 2026-04-12 22:00 China Standard Time (UTC+8:00))Reason of Maintenance: Provider advised maintenance.Impact During Maintenance: Intermittent connectivity might ...
Atlanta III (ATL3) Datacenter Network Maintenance - zscaler.net
Started:
investigating
Zscaler will be performing hardware maintenance in the Atlanta III (ATL3) Datacenter.Maintenance window,Start: 2026-4-7 18:00 ESTEnd: 2026-4-7 20:00 EST(i.e. 2026-4-7 22:00 - 2026-4-8 00:00 UTC)During the maintenance, traffic will failover to redundant devices in the same datacenter. However, intermittent connections and connection reestablishment may be observed.
Urgent Maintenance on zdxcloud.net - zdxcloud.net
Started:
investigating
The Zscaler SRE team will be performing an urgent maintenance on the zdxcloud.net cloud. This maintenance is scheduled for Sunday at 06:15 AM UTC on April 05, 2026, and can take up to 1 hour to complete. During this maintenance window the ZDX Admin Portal, including policy management, reporting access, and authentication of new users will not be available. As part of our standard maintenance process all logs will be collected and available after maintenance has completed.Update - Sun, 05 Apr ...
ZDX Admin Portal – Reporting and Logging Delay - zdxcloud.net
Started:
investigating
Zscaler has detected an issue with the ZDX cloud. Customers may experience a temporary delay in reporting data.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Latest Update - Mon, 06 Apr 2026 03:31:53 UTCNo issues have been observed during the monitoring period. We have applied...
ZDX Admin Portal – Reporting and Logging Delay - zdxcloud.net
Started:
investigating
Zscaler has detected an issue impacting connectivity between client connector and ZDX cloud. Customers may experience a temporary delay in reporting data.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root cause: A service component within the ZDX cloud was unable to process u...
Private Service Edge (PSE) – Intermittent Traffic Blocking for Explicit Proxy Traffic - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler is aware of and actively investigating an issue impacting a subset of customers using Private Service Edge (PSE). Some customers are experiencing intermittent traffic blocking when accessing websites through PSE. Affected requests may return the error: "Web Application Blocked by Firewall Rule."We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status cha...
Urgent Maintenance - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, zdxcloud.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance during which access to the Zscaler Management Portal for Partners and ZDX Admin Portal might not be available. This maintenance is scheduled for Saturday at 05:45 AM Pacific Time on April 04, 2026 (Saturday, April 04, 2026 12:45 PM UTC), and can take up to 2 hours to complete. All logs will be collected and available after maintenance is complete. Please contact Zscaler Support if you have additional questi...
London V Datacenter Scheduled Maintenance - Service Expansion - zscaler.net
Started:
investigating
Zscaler will be expanding its global data center footprint and performing maintenance at our London V (LON5) data center. We expect minimal to no impact to services during the maintenance window. Please update your firewall policy rules and any upstream Access Control Lists to allow all IP addresses for this DCFor more information, please visit:https://config.zscaler.com/zscaler.net/cenrMaintenance Window:Start time is April 9, 1:00 pm PDT (April 9, 20:00 UTC)End time is April 9, 6:00 pm...
Montreal I Datacenter Scheduled Maintenance - Service Expansion - zscalerthree.net
Started:
investigating
Zscaler will be expanding its global data center footprint and performing maintenance at our Montreal I (YMQ1) data center. We expect minimal to no impact to services during the maintenance window. Please update your firewall policy rules and any upstream Access Control Lists to allow all IP addresses for this DCFor more information, please visit:https://config.zscaler.com/zscalerthree.net/cenrMaintenance Window:Start time is April 8, 6:00 pm PDT (April 9, 1:00 UTC)End time is April 8, 1...
Axios Supply Chain Attack Update - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zdxcloud.net, zpatwo.net, app.zsdpc.net, app.eu.zsdpc.net, zpabeta.net, zsdkone.net, zscalerrisk.net, admin.zscaleranalytics.net, zslogin.net
Started:
investigating
Zscaler has analyzed the supply chain compromises affecting the Axios npm packages. Analysis confirms no impact to Zscaler platforms, products, or internal systems.As a best practice, customers should review their environments for the following impacted versions:Axios npm package versions: 1.14.1 and 0.30.4Actions if you have an impacted version:Update/Revert: Revert or pin Axios to known safe versions (e.g., 1.14.0 or 0.30.3)Rotate Credentials: Update all API keys, cloud token...
User Authentication Issue on Kingdom of Saudi Arabia I datacenter - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler has detected an issue with its Kingdom of Saudi Arabia I datacenter and is currently investigating the matter. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal ...
Planned Maintenance Activity for ZPA platform service - private.zscaler.com
Started:
investigating
We will be performing planned maintenance on our platform infrastructure in the Prod US region to enhance availability and resiliency. Some customers may witness below impact during this maintenance window:Momentary disconnect and auto-reconnect of zcc.Any active session will be disconnected and logged under ZPA User Activity logs as “MT_CLOSED_TLS_CONN_GONE_SCIM_USER_MOVED”Important Note: No action is required from customers and this communication is only intended to info...
Upcoming New Data Centers and Expansions - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zpatwo.net
Started:
investigating
Dear Zscaler Customer,In accordance with Zscaler Service Continuity Policy and per email notification sent on April 1, 2026, we would like to notify you of the upcoming new data centers and expansions at the locations listed below. These would be available anytime on or after May 31, 2026; 60 days or more from the date the first email notification is sent.Please update your firewall policy rules and any upstream Access Control Lists (ACLs) to allow the new IP address ranges to avoid...
Scheduled Maintenance - zscalerthree.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be performing a scheduled maintenance on zscalerthree.net cloud. This maintenance is scheduled for Saturday at 07:00 AM Pacific Time on April 4, 2026 (Saturday, April 4, 2026 02:00 PM UTC), and can take up to 4 hours to complete.During maintenance, which includes the control plane, the Admin Portal might be temporarily placed into read-only mode, making the following unavailable: configuration changes, new user provisioning, and existing user...
Zurich I Datacenter Scheduled Maintenance - Service Expansion - zscloud.net
Started:
investigating
Zscaler will be expanding its global data center footprint and performing maintenance at our Zurich I (ZRH1) data center. We expect minimal to no impact to services during the maintenance window. Please update your firewall policy rules and any upstream Access Control Lists to allow all IP addresses for this DCFor more information, please visit:https://config.zscaler.com/zscloud.net/cenrMaintenance Window:Start time is April 2, 1:30 pm PDT (April 2, 20:30 UTC)End time is April 2, 4:30 pm...
Chennai II, Hyderabad I, Mumbai VI, Mumbai VII, New Delhi I Datacenter Issue - zscalerthree.net
Started:
investigating
Zscaler has detected an issue with its Chennai II, Hyderabad I, Mumbai VI, Mumbai VII, New Delhi I datacenter and is currently investigating the matter. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional det...
March 2026
Montreal I Datacenter Scheduled Maintenance - IPv6 Enablement - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler will be enabling IPv6 at our Montreal I (YMQ1) Data Center. During the maintenance window the services through YMQ1 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is April 1, 6:00 pm PDT (April 2, 1:00 UTC)End time is April 1, 11:00 pm PDT (April 2, 6:00 UTC)Update - Thu, 02 Apr 2026 04:19:00 UTCThis activity has been completed. Please contact Zscaler ...
Action Required — Verify/Correct Your Z-Identity IdP “Primary Email” Attribute Mapping - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zdxcloud.net, zpatwo.net, app.zsdpc.net, app.eu.zsdpc.net, zpabeta.net, zsdkone.net, zscalerrisk.net, admin.zscaleranalytics.net, zslogin.net
Started:
investigating
Zscaler is proactively reaching out to help prevent potential login failures to the Z-Identity Admin Console when authenticating through your Identity Provider (IdP). Based on monitoring, your tenant may be missing or mis-mapping the required Primary Email attribute used during JIT (Just-In-Time) provisioning.This advisory relates to the recent incident and follow-up corrective actions (Reference: Trust Post: Z-Identity Portal Issue).What is the issue?On Mar...
Administration UI and User Authentication Issues - zscalertwo.net
Started:
investigating
Zscaler has detected an issue with the administration UI and user authentication on its zscalertwo.net Cloud. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: The preliminary root cause of this issue is attributed to a fault in the control plane.Latest Update - ...
Urgent Maintenance on Mumbai VI and New Delhi I datacenters - zscalerthree.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on the Mumbai VI and New Delhi I datacenters on the zscalerthree.net cloud. This maintenance is scheduled for Monday at 4:30 PM Pacific Time on March 30, 2026 (Monday, March 30, 2026 11:30 PM UTC), and can take up to 2 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available after maintenance is complete. Please contact Zscaler Sup...
Zurich I Datacenter Scheduled Maintenance - IPv6 Enablement - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler will be enabling IPv6 at our Zurich I (ZRH1) Data Center. During the maintenance window the services through ZRH1 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is April 1, 1:30 pm PDT (April 1, 20:30 UTC)End time is April 1, 5:30 pm PDT (April 2, 0:30 UTC)Update 3/31: Maintenance postponed
Customer Support Portal (CSP) Login Issues - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zdxcloud.net, zpatwo.net
Started:
investigating
Zscaler is currently investigating an issue impacting Customer Support Portal (CSP) access for a subset of customers. Affected customers may encounter the error message: “Can’t connect to Zscaler Support” when attempting to log in to the CSP.Workaround: While a fix is being implemented, customers may use the following alternative methods:If you have Administrative access to another Zscaler product (such as ZIA, ZPA, or ZDX), you can access the Support Portal through that produ...
São Paulo IV (SAO4) Critical Datacenter Network Maintenance - zscaler.net, zscalertwo.net, zscloud.net
Started:
investigating
Zscaler will be performing critical hardware maintenance in the São Paulo IV (SAO4) Datacenter.Maintenance window,Start: 2026-4-2 18:00 GMT-3End: 2026-4-2 22:00 GMT-3(i.e. 2026-4-2 21:00 - 2026-4-3 01:00 UTC)During the maintenance, traffic will failover to redundant devices in the same datacenter. However, intermittent connections and connection reestablishment may be observed.
Reminder Notification For New Data Center and Old CIDR Deprecation - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zpatwo.net
Started:
investigating
Dear Customer, In accordance with the Zscaler Service Continuity Policy and as previously announced via email notification and Trust on February 10, 2026, we would like to remind you of the upcoming new data center at the location listed below. This would be available anytime on or after April 11, 2026.Please update your firewall policy rules and any upstream access lists to allow the new IP address ranges to avoid any service disruption.RegionLocationCIDRNotesAm...
ZIA Platform Alerts – Email Notifications Not Being Delivered - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler is investigating an issue impacting email notifications for Platform Alerts configured within the ZIA Admin Portal (Under Administration > Define Alerts Page > Alerts). Customers may not be receiving email notifications for alert-triggering events. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be ...
Planned Maintenance Activity for ZPA authentication service - private.zscaler.com
Started:
investigating
We will be performing planned maintenance on our ZPA authentication platform infrastructure to enhance availability and resiliency. Customers may witness authentication issue while login to Admin UI or Public API during this maintenance window.Important Note: No action is required from customers and this communication is only intended to inform in advance.Please reach out to support if you have any questions or require further clarification.Update - Sat, 28 Mar 2026 03:34:33 UTCThis activity ...
Urgent Maintenance - zscalertwo.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on zscalertwo.net cloud. This maintenance is scheduled for Thursday at 10:30 PM Pacific Time on March 26, 2026 (Friday, March 27, 2026 05:30 AM UTC), and can take up to 30 minutes to complete.During the maintenance, the ZIA Admin Portal, and access to policy management will not be available. A brief impact to new user authentication might occur. However, all the logs that are collected during this period wi...
Experience Center – SSO Error When Accessing Support Tab - zslogin.net
Started:
investigating
Zscaler is investigating an issue impacting Experience Center customers, where users may encounter an SSO error when navigating to the Support tab within the Experience Portal.Impact: Customers attempting to access the Support tab through the Experience Center portal may be unable to successfully authenticate via SSO. All other platform functionalities remain unaffected.Workaround:Customers can continue to access the Support Portal using the following validated workaround:Log in to an alterna...
China Premium Access Plus Shanghai Datacenter (Shanghai VI) Network Maintenance - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Shanghai VI DC network providers have advised maintenance work as below. During the maintenance window, China Premium Access Plus services within these data centres may experience intermittent disconnections.Start Time: 2026-04-08 14:00:00 UTCEnd Time: 2026-04-08 15:00:00 UTC(Datacenter Local Time 2026-04-08 22:00 - 2026-04-08 23:00 China Standard Time (UTC+8:00))Reason of Maintenance: Provider advised maintenance.Impact During Maintenance: Intermittent connectivity might be observed du...
Upcoming Extranet Virtual IP Address Announcement - zscloud.net
Started:
investigating
Dear Zscaler Customer,In accordance with Zscaler Service Continuity Policy and per email notification sent on March 26, 2026, we would like to notify you of the new Virtual IP addresses (VIPs) for the Zscaler Extranet Application Support rollout.These new Extranet VIPs can be used to terminate IPSec VPN tunnels with Extranet connectivity at the locations listed below. The VIPs will be displayed on the Zscaler Config page for ease of access and visibility.&n...
Upcoming Extranet Virtual IP Address Announcement - zscalerthree.net
Started:
investigating
Dear Zscaler Customer,In accordance with Zscaler Service Continuity Policy and per email notification sent on March 26, 2026, we would like to notify you of the new Virtual IP addresses (VIPs) for the Zscaler Extranet Application Support rollout.These new Extranet VIPs can be used to terminate IPSec VPN tunnels with Extranet connectivity at the locations listed below. The VIPs will be displayed on the Zscaler Config page for ease of access and visibility. Us...
Upcoming Extranet Virtual IP Address Announcement - zscalertwo.net
Started:
investigating
Dear Zscaler Customer,In accordance with Zscaler Service Continuity Policy and per email notification sent on March 26, 2026, we would like to notify you of the new Virtual IP addresses (VIPs) for the Zscaler Extranet Application Support rollout.These new Extranet VIPs can be used to terminate IPSec VPN tunnels with Extranet connectivity at the locations listed below. The VIPs will be displayed on the Zscaler Config page for ease of access and visibility. Us...
Upcoming Extranet Virtual IP Address Announcement - zscaler.net
Started:
investigating
Dear Zscaler Customer,In accordance with Zscaler Service Continuity Policy and per email notification sent on March 26, 2026, we would like to notify you of the new Virtual IP addresses (VIPs) for the Zscaler Extranet Application Support rollout.These new Extranet VIPs addresses can be used to terminate IPSec VPN tunnels with Extranet connectivity at the locations listed below. The VIPs will be displayed on the Zscaler Config page for ease of access and visibilit...
Trivy and LiteLLM Supply Chain Incident (CVE-2026-33634) Update - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zdxcloud.net, zpatwo.net, app.zsdpc.net, app.eu.zsdpc.net, zpabeta.net, zsdkone.net, zscalerrisk.net, admin.zscaleranalytics.net, zslogin.net
Started:
investigating
Zscaler has analyzed the supply chain compromises affecting the Trivy security scanner and LiteLLM. Analysis confirms no impact to Zscaler platforms, products, or internal systems, including AI Guard.As a best practice customers should review their environments for the following impacted versions:Trivy: Container images v0.69.5–v0.69.6LiteLLM: Versions 1.82.7 and 1.82.8.Actions if you have an impacted version:Update/Revert: Upgrade Trivy to v0.69.7 or late...
Frankfurt VI Datacenter Scheduled Maintenance - zscaler.net
Started:
investigating
Zscaler will be expanding its global data center footprint and performing maintenance at our Frankfurt VI (FRA6) data center. We expect minimal to no impact to services during the maintenance window. Please update your firewall policy rules and any upstream Access Control Lists to allow all IP addresses for this DCFor more information, please visit:https://config.zscaler.com/zscaler.net/cenrMaintenance Window:Start time is March 27, 3:00 pm PDT (March 27, 22:00 UTC)End time is Marc...
Planned Maintenance Activity for ZPA platform service - private.zscaler.com
Started:
investigating
We will be performing planned maintenance on our platform infrastructure in the Prod US region to enhance availability and resiliency. Some customers may witness below impact during this maintenance window:Momentary disconnect and auto-reconnect of zcc.Any active session will be disconnected and logged under ZPA User Activity logs as “MT_CLOSED_TLS_CONN_GONE_SCIM_USER_MOVED”Important Note: No action is required from customers and this communication is only intended to info...
Cloud Browser Isolation issue for Frankfurt Region - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com
Started:
investigating
Zscaler has identified an issue with Cloud Browser Isolation (CBI) impacting customers in Frankfurt Region. Affected customers may experience issue with new isolation session for Frankfurt region.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Update - Wed, 25 Mar 2026 14:36:16...
Oslo III Datacenter Issue - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler has detected an issue with its Oslo III datacenter and is currently investigating the matter. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status cha...
Urgent Oslo III (OSL3) Datacenter Network Maintenance - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com
Started:
investigating
Zscaler will be performing hardware maintenance in the Oslo III (OSL3) Datacenter.Maintenance window,Start: 2026-03-25 13:00 CESTEnd: 2026-03-25 16:00 CEST(i.e. 2026-03-25 12:00 - 2026-03-25 15:00 UTC)Update - Wed, 25 Mar 2026 13:58:57 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Mumbai VI (BOM6) Datacenter Network Maintenance - zscaler.net
Started:
investigating
Zscaler will be performing hardware maintenance in Mumbai VI (BOM6) Datacenter .Maintenance window: Start: 2026-03-27 12:30 UTC End: 2026-03-27 14:30 UTC (Local Time 2026-03-27 18:00 - 2026-03-27 20:00 IST)
Los Angeles I Datacenter Scheduled Maintenance - zscalertwo.net
Started:
investigating
Zscaler will be performing hardware maintenance in Los Angeles I (QLA1) Datacenter.Maintenance window: Start: 2026-03-26 02:00 UTC End: 2026-03-26 04:00 UTC (Local Time 2026-03-25 19:00 - 2026-03-25 21:00)Update - Thu, 26 Mar 2026 03:59:14 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Reminder Notification for Upcoming Data Center Expansion - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zpatwo.net
Started:
investigating
Dear Customer, In accordance with the Zscaler Service Continuity Policy and as previously announced via email notification and Trust on February 4, 2026, we would like to remind you of the upcoming data center expansion at the location listed below. These would be effective anytime on or after April 5, 2026.Please update your firewall policy rules and any upstream access control lists to allow the new IP address ranges to avoid any service disruption.RegionLocationCID...
Reminder Notification for Additions of HUB IP Address Ranges - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, zdxcloud.net
Started:
investigating
Dear Customer, In accordance with Zscaler Service Continuity Policy and as previously announced via Trust and email notification sent on February 4, 2026, we would like to remind you of the upcoming changes to HUB IP address ranges as listed below. The services through the new IP address range will be available anytime on or after April 5, 2026.CIDRNotes205.220.118.0/23New addition to Required Hub IP addresses101.2.244.0/23New addition to Required Hub I...
Abu Dhabi I and Dubai II Data Center Issue - zscloud.net
Started:
investigating
Zscaler has detected an issue with its Abu Dhabi I and Dubai II datacenter on the zcloud.net cloud and is currently investigating the matter. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler c...
Dubai I Data Center Issue - zscloud.net
Started:
investigating
Zscaler has detected an issue with its Dubai I datacenter on zscloud.net and is currently investigating the matter. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CS...
Canberra I Data Center Issue - zscalerthree.net
Started:
investigating
Zscaler has detected an issue with its Canberra I datacenter on the zscalerthree.net cloud and is currently investigating the matter. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer ...
San Francisco IV (SJC4) Datacenter Network Maintenance - zscalertwo.net, zscalerthree.net
Started:
investigating
Zscaler will be performing hardware maintenance in San Francisco IV (SJC4) Datacenter.Maintenance window: Start: 2026-03-25 03:30 UTC End: 2026-03-25 06:30 UTC (Local Time 2026-03-24 20:30 - 2026-03-24 23:30)Update - Wed, 25 Mar 2026 04:00:53 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
ZIdentity Portal Issue - zslogin.net
Started:
investigating
Zscaler is investigating an issue with the ZIdentity Portal on the zslogin.net Cloud. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root cause- The issue occurred due to a recent service update.Update - Sat, 21 Mar 2026 12:10:56 UTCThe Zscaler team has identified the root cau...
Capetown IV Datacenter Issue - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler has detected an issue with our Capetown IV datacenter and is currently investigating the matter. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status ...
CBI Original URL Experience Degradation - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler is actively implementing mitigation measures for an intermittent, low-impact issue affecting the Zscaler Internet Access (ZIA) Service Edge. As part of our troubleshooting and remediation process, we are making adjustments to a specific feature indicated by our data to be triggering the issue. As a result, some Cloud Browser Isolation (CBI) customers who have enabled the newly released Original URL feature in their Isolation Profile may periodically still see the full...
Rio de Janeiro I Datacenter Scheduled Maintenance - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler will be enabling IPv6 at our Rio de Janeiro I (RIO1) Data Center. During the maintenance window the services through RIO1 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is March 23, 2:00 pm PST (March 23, 21:00 UTC)End time is March 23, 7:00 pm PST (March 24, 2:00 UTC)Update 3/23: Maintenance Postponed
Atlanta III Datacenter Scheduled Maintenance - zscaler.net, zscalertwo.net, zscloud.net
Started:
investigating
Zscaler will be enabling IPv6 at our Atlanta III (ATL3) Data Center. During the maintenance window the services through ATL3 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is March 23, 6:00 pm PST (March 24, 1:00 UTC)End time is March 23, 11:00 pm PST (March 24, 6:00 UTC)
Urgent Maintenance - zscaler.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on the Atlanta II, Atlanta III, Los Angeles, Los Angeles II datacenter on the zscaler.net cloud. This maintenance can take up to 2 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available after maintenance is complete. Please contact Zscaler Support if you have additional questions.Update - Fri, 20 Mar 2026 18:06:31 UTCThis activit...
Urgent Maintenance on Dusseldorf 1 and Frankfurt 6 datacenters - zscaler.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on the Dusseldorf 1 and Frankfurt 6 datacenters on the zscaler.net cloud. This maintenance is scheduled for Thursday at 11:30 PM Pacific Time on March 19, 2026 (Friday, March 20, 2026 6:30 AM UTC), and can take up to 1 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available after maintenance is complete. Please contact Zscaler Sup...
Urgent Maintenance - AMER Region - zscalertwo.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on the AMER region's datacenters of zscalertwo.net cloud. This maintenance is scheduled for Thursday at 9:00 PM Pacific Time on Mar 19, 2026 (Friday, Mar 20, 2026 4:00 AM UTC), and can take up to 3 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available after maintenance is complete. Please contact Zscaler Support if you have addi...
Urgent Maintenance on New York 3 and 4 datacenters - zscaler.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on the New York 3 and 4 datacenter on the zscaler.net cloud. This maintenance is scheduled for Thursday at 1:30 AM Pacific Time on March 19, 2026 (Thursday, March 19, 2026 8:30 AM UTC), and can take up to 3 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available after maintenance is complete. Please contact Zscaler Support if you ...
User Authentication Issue on Sao Paulo II - zscaler.net, zscalertwo.net, zscloud.net
Started:
investigating
Zscaler has detected an issue with its Sao Paulo II datacenter and is currently investigating the matter. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status...
Planned Maintenance Activity for ZPA authentication service - private.zscaler.com
Started:
investigating
We will be performing planned maintenance on our ZPA authentication platform infrastructure to enhance availability and resiliency. Some customers may witness below impact during this maintenance window:Brief retries or elevated latency for new auth requests might be seen during connection re‑establishment.Transient errors during auth is possible; retry should succeed.Important Note: No action is required from customers and this communication is only intended to inform in advance.Plea...
Sydney V Data Center online - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Dear Zscaler Customer,You are receiving this notice in accordance with the Zscaler Service Continuity Policy.As part of our effort to enhance our Security Cloud’s robustness and performance, Zscaler will be bringing online a new Sydney V (SYD5) data center. This facility will be added to the public resolution service (Auto Geo Proximity) on March 19, 2026What if I have more questions? Contact Zscaler Support via the “Support” link at the top-right of the Zscaler...
Zscaler Client Connector (ZCC) Authentication Issues - zscalerone.net
Started:
investigating
Zscaler is aware and investigating reports on an issue with ZCC Network errors on its zscalerone.net Cloud. Affected users may experience 'network connection failed' errors when attempting to log into Zscaler Client Connector (ZCC). Users who are already logged in can access services normally.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and a...
Planned Maintenance Activity for ZPA platform service - private.zscaler.com
Started:
investigating
We will be performing planned maintenance on our platform infrastructure in the Prod US region to enhance availability and resiliency. Some customers may witness below impact during this maintenance window:Momentary disconnect and auto-reconnect of zcc.Any active session will be disconnected and logged under ZPA User Activity logs as “MT_CLOSED_TLS_CONN_GONE_SCIM_USER_MOVED”Important Note: No action is required from customers and this communication is only intended to info...
San Francisco IV (SJC4) Datacenter Network Maintenance - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com
Started:
investigating
Zscaler will be performing hardware maintenance in San Francisco IV (SJC4) Datacenter.Maintenance window: Start: 2026-03-19 06:00 UTC End: 2026-03-19 14:00 UTC (Local Time 2026-03-18 23:00 - 2026-03-19 07:00)Update - Thu, 19 Mar 2026 11:59:25 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
SaaS Application Activity Data Not Displaying in Activity Logs - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Activity Logs are currently not displaying SaaS application activity data. Zscaler is actively working to resolve this issue.Who is impacted?ZIA customers who have onboarded and configured Data-at-Rest scanning for SaaS applications may temporarily be unable to view SaaS-related activity data in Activity Logs.When will this be resolved?A fix is currently being deployed and is expected to be completed across all Zscaler clouds by March 22, 2026.What are my next steps?No action is required from...
Deprecation of Individual Administrative UIs - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zdxcloud.net, zpatwo.net, zslogin.net
Started:
investigating
What is changing?Zscaler is deprecating individual administrative User Interfaces (UIs). Customers must migrate to ZIdentity and Experience Center, Zscaler’s centralized administrative and insights platform, to take advantage of new features and innovations.Who is impacted?All customers not currently using ZIdentity for administrative purposes must complete the migration to have access to new features and innovations.Key InformationAccess Experience Center: To use the latest administrative ...
Zscaler Microsegmentation Log Forwarding Issue - private.zscaler.com
Started:
investigating
Zscaler is investigating an issue with the Zscaler Microegmentation's log forwarding service via Log Streaming Service (LSS) on its private.zscaler.com cloud. The logs forwarding via LSS is temporarily disabled. This does not impact the core Microsegmentation functionality and all the logs will continue to be visible in the Administration UI.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler c...
Sitereview Portal Validation Update - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zdxcloud.net, zpatwo.net, app.zsdpc.net, app.eu.zsdpc.net, zpabeta.net, zsdkone.net, zscalerrisk.net, admin.zscaleranalytics.net, zslogin.net
Started:
investigating
Site review is used by customers and their users to submit URL categorization and review requests to Zscaler. To provide a more secure environment for our ZIA customers, Zscaler is refining how the Site review portal authorizes URL recategorization and review requests. Previously, the portal accepted requests if either the Source IP or the X Forwarded For header belonged to a Zscaler IP address range. As part of a security enhancement, we are removing reliance on the X Forwarde...
Zscaler Client Connector Portal Issue - zscaler.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler has detected an issue with Zscaler Client Connector Portal Issue on its zscalerthree.net Cloud. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root cause- The issue was caused by a software defect introduced during a recent system update.Latest Update - Mon, 16 Mar 202...
Release Upgrade for Zscaler Data Security Posture Management (DSPM) - app.zsdpc.net
Started:
investigating
Zscaler Data Posture Control (DSPM) Operations team will be performing a planned upgrade activity on March 16th, 2026. These service updates are applied in regional off-peak hours and should not result in any downtime for customers. Please reach out to Customer support for more information about the changes. Update - Mon, 16 Mar 2026 05:52:18 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Urgent Maintenance - VZEN nodes - zscalertwo.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on the VZEN nodes in zscalertwo.net cloud. The maintenance will happen across VZEN nodes during the window, beginning at 06:30 PM Pacific Time on Saturday, March 14, 2026 (Sunday, March 15, 2026 01:30 AM UTC) and continuing for up to 5 hours. VZEN's services will be restarted as part of this change and service for your end users might be disrupted during the window. All logs will be collected and available ...
Urgent Maintenance on Zurich datacenter - zscloud.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on the Zurich datacenter on the zscloud.net cloud. This maintenance is scheduled for Saturday at 1:00 PM Pacific Time on March 14, 2026 (Saturday, March 14, 2026 8:00 PM UTC), and can take up to 3 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available after maintenance is complete. Please contact Zscaler Support if you have addit...
Zscaler Client Connector-Based End User Notifications Issue - zscaler.net
Started:
investigating
Zscaler has detected an issue with Zscaler Client Connector-Based End User Notifications on its zscaler.net Cloud. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Resolved- Issue was related to node.Update - Sat, 14 Mar 2026 06:52:20 UTCZscaler has implemented mitiga...
Scheduled Maintenance Extended - zscaler.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be extending the scheduled maintenance of the zscaler.net cloud by 2 hour. As part of our standard maintenance process, all logs will be collected and available after maintenance has been completed. Please contact Zscaler Support if you have additional questions.Update - Sat, 14 Mar 2026 08:00:18 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Dubai I Datacenter Scheduled Maintenance - zscaler.net, zscalertwo.net, zscalerthree.net
Started:
investigating
Zscaler will be enabling IPv6 at our Dubai I (DXB1) Data Center. During the maintenance window the services through DXB1 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is March 19, 9:00 am PST (March 19, 16:00 UTC)End time is March 19, 3:00 pm PST (March 19, 22:00 UTC)
Dubai I Datacenter Scheduled Maintenance - zscloud.net
Started:
investigating
Zscaler will be expanding its global data center footprint and performing maintenance at our Dubai I (DXB1) data center. We expect minimal to no impact to services during the maintenance window. Please update your firewall policy rules and any upstream Access Control Lists to allow all IP addresses for this DCFor more information, please visit:https://config.zscaler.com/zscloud.net/cenrMaintenance Window:Start time is March 19, 9:00 am PST (March 19, 16:00 UTC)End time is March 19, 3:00 ...
Upcoming Data Center Expansions - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zpatwo.net
Started:
investigating
Dear Zscaler Customer,In accordance with Zscaler Service Continuity Policy and per email notification sent on March 13, 2026, we would like to notify you of the upcoming data center expansions at the locations listed below. These would be available anytime on or after May 12, 2026; 60 days or more from the date the first email notification is sent.Please update your firewall policy rules and any upstream Access Control Lists (ACLs) to allow the new IP address ranges to avoid any ser...
Singapore IV Datacenter Scheduled Maintenance - zscaler.net, zscloud.net
Started:
investigating
Zscaler will be enabling IPv6 at our Singapore IV (SIN4) Data Center. During the maintenance window the services through SIN4 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is March 18, 9:00 am PST (March 18, 16:00 UTC)End time is March 18, 3:00 pm PST (March 18, 22:00 UTC)
Manchester I Datacenter Scheduled Maintenance - zscalertwo.net
Started:
investigating
Zscaler will be expanding its global data center footprint and performing maintenance at our Manchester I (MAN1) data center. We expect minimal to no impact to services during the maintenance window. Please update your firewall policy rules and any upstream Access Control Lists to allow all IP addresses for this DCFor more information, please visit:https://config.zscaler.com/zscalertwo.net/cenrMaintenance Window:Start time is March 18, 11:00 am PST (March 18, 18:00 UTC)End time is March ...
Manchester I Datacenter Scheduled Maintenance - zscalertwo.net
Started:
investigating
Zscaler will be enabling IPv6 at our Manchester I (MAN1) Data Center. During the maintenance window the services through MAN1 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is March 18, 11:00 am PST (March 18, 18:00 UTC)End time is March 18, 4:00 pm PST (March 18, 23:00 UTC)
Vienna I Datacenter Scheduled Maintenance - zscloud.net, zscalerthree.net
Started:
investigating
Zscaler will be enabling IPv6 at our Vienna I (VIE1) Data Center. During the maintenance window the services through VIE1 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is March 16, 1:00 pm PST (March 16, 8:00 UTC)End time is March 16, 7:00 pm PST (March 17, 2:00 UTC)
Manchester I Datacenter Scheduled Maintenance - zscloud.net
Started:
investigating
Zscaler will be enabling IPv6 at our Manchester I (MAN1) Data Center. During the maintenance window the services through MAN1 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is March 17, 11:00 am PST (March 17, 18:00 UTC)End time is March 17, 4:00 pm PST (March 17, 23:00 UTC)
Manchester I Datacenter Scheduled Maintenance - zscloud.net
Started:
investigating
Zscaler will be expanding its global data center footprint and performing maintenance at our Manchester I (MAN1) data center. We expect minimal to no impact to services during the maintenance window. Please update your firewall policy rules and any upstream Access Control Lists to allow all IP addresses for this DCFor more information, please visit:https://config.zscaler.com/zscloud.net/cenrMaintenance Window:Start time is March 17, 11:00 am PST (March 17, 18:00 UTC)End time is March 17,...
Taipei II Datacenter Scheduled Maintenance - zscaler.net, zscalertwo.net, zscalerthree.net
Started:
investigating
Zscaler will be enabling IPv6 at our Taipei II (TPE2) Data Center. During the maintenance window the services through TPE2 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is March 17, 9:00 am PST (March 17, 16:00 UTC)End time is March 17, 2:00 pm PST (March 17, 21:00 UTC)
Taipei II Datacenter Scheduled Maintenance - zscloud.net
Started:
investigating
Zscaler will be expanding its global data center footprint and performing maintenance at our Taipei II (TPE2) data center. We expect minimal to no impact to services during the maintenance window. Please update your firewall policy rules and any upstream Access Control Lists to allow all IP addresses for this DCFor more information, please visit:https://config.zscaler.com/zscloud.net/cenrMaintenance Window:Start time is March 17, 9:00 am PST (March 17, 16:00 UTC)End time is March 17, 2:0...
Commercial Salesforce Security Notification - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zdxcloud.net, zpatwo.net, app.zsdpc.net, app.eu.zsdpc.net, zpabeta.net, zsdkone.net, zscalerrisk.net, admin.zscaleranalytics.net, zslogin.net
Started:
investigating
On March 10, 2026, Zscaler was made aware of a campaign targeted at the Salesforce Experience Center impacting a large number of Salesforce customers, including Zscaler. Following guidance from Salesforce, Zscaler completed remediation of the incident on March 11, 2026.Unauthorized access to personal data was limited to the Name and Email Address field from the Commercial Zscaler Community Portal. The scope of the incident was confined to the Zscaler Commercial Salesforce tenant and...
Paris IV Datacenter Scheduled Maintenance - zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler will be enabling IPv6 at our Paris IV (PAR4) Data Center. During the maintenance window the services through PAR4 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is March 16, 10:00 am PST (March 16, 17:00 UTC)End time is March 16, 3:00 pm PST (March 16, 22:00 UTC)
Oslo III Datacenter Issue - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler has detected an issue with our Oslo III datacenter and is currently investigating the matter. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status cha...
Zscaler Client Connector-Based End User Notifications Issue - zscaler.net
Started:
investigating
Zscaler has detected an issue with Zscaler Client Connector-Based End User Notifications on its zscaler.net Cloud. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Resolved- Issue was related to node.Update - Fri, 13 Mar 2026 12:16:51 UTCFollowing the actions previous...
Urgent Maintenance on Los Angeles, Los Angeles II, Seattle, San Francisco IV, and Denver III datacenters - zscalertwo.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on the Los Angeles, Los Angeles II, Seattle, San Francisco IV, and Denver III datacenters on the zscalertwo.net cloud. This maintenance is scheduled for Thursday at 11:00 PM Pacific Time on Mar 12, 2026 (Friday, Mar 13, 2026 06:00 AM UTC), and can take up to 3 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available after maintenan...
Urgent Maintenance on Atlanta II, Atlanta III, Washington DC, Washington DC IV, Miami III, and Boston I datacenters - zscalertwo.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on the Atlanta II, Atlanta III, Washington DC, Washington DC IV, Miami III, and Boston I datacenters on the zscalertwo.net cloud. This maintenance is scheduled for Thursday at 5:00 PM Pacific Time on Mar 12, 2026 (Friday, Mar 13, 2026 12:00 AM UTC), and can take up to 3 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available after...
Planned Maintenance Activity for ZPA authentication service - zpatwo.net
Started:
investigating
We will be performing planned maintenance on our ZPA authentication platform infrastructure to enhance availability and resiliency. Some customers may witness below impact during this maintenance window:Brief retries or elevated latency for new auth requests might be seen during connection re‑establishment.Transient errors during auth is possible; retry should succeed.Important Note: No action is required from customers and this communication is only intended to inform in ad...
Administration UI and User Authentication Issues - zscaler.net
Started:
investigating
Zscaler has detected an issue with the administration UI and user authentication on its zscaler.net Cloud. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Root Cause: A Central Authority (CA) issue triggered a CA re-election.Latest Update - Thu, 12 Mar 2026 12:22:02 UTCFol...
Release Upgrade for Zscaler Data Security Posture Management (DSPM) - app.eu.zsdpc.net
Started:
investigating
Zscaler Data Posture Control (DSPM) Operations team will be performing a planned upgrade activity on March 12th, 2026. These service updates are applied in regional off-peak hours and should not result in any downtime for customers. Please reach out to Customer support for more information about the changes. Update - Thu, 12 Mar 2026 06:03:05 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Rio de Janeiro I Datacenter Scheduled Maintenance - zscalertwo.net
Started:
investigating
Zscaler will be expanding its global data center footprint and performing maintenance at our Rio de Janeiro I (RIO1) data center. We expect minimal to no impact to services during the maintenance window. Please update your firewall policy rules and any upstream Access Control Lists to allow all IP addresses for this DCFor more information, please visit:https://config.zscaler.com/zscalertwo.net/cenrMaintenance Window:Start time is March 12, 6:00 pm PST (March 13, 1:00 UTC)End time is Marc...
Urgent Maintenance - zscalerone.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on zscalerone.net cloud. This maintenance is scheduled for Thursday at 1:00 AM Pacific Time on Mar 12, 2026 (Thursday, Mar 12, 2026 8:00 AM UTC), and can take up to 3 hours to complete.During maintenance, the Zscaler Client Connector Portal will be in maintenance mode. As a result, access to policy management and reporting will not be available. Existing devices that are already enrolled will not be affecte...
Planned Maintenance Activity for ZPA platform service - private.zscaler.com
Started:
investigating
We will be performing planned maintenance on our platform infrastructure in the Prod US region to enhance availability and resiliency. Some customers may witness below impact during this maintenance window:Momentary disconnect and auto-reconnect of zcc.Any active session will be disconnected and logged under ZPA User Activity logs as “MT_CLOSED_TLS_CONN_GONE_SCIM_USER_MOVED”Important Note: No action is required from customers and this communication is only intended to info...
Reporting and Logging Issue - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
Zscaler is currently investigating reports of issues with Reporting and Logging on its zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net Cloud. Your organization's policies are being enforced. All user logs are being collected and will be available at the resolution of this incident. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP)....
Urgent Maintenance on Dallas I, Dallas II, New York III, New York IV datacenters - zscalerthree.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on the Dallas I, Dallas II, New York III, New York IV datacenters on the zscalerthree.net cloud. This maintenance can take up to 2 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available after maintenance is complete. Please contact Zscaler Support if you have additional questions.Update - Wed, 11 Mar 2026 10:02:18 UTCThis a...
Scheduled Maintenance on AMER region's Egress NAT nodes - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be performing a scheduled maintenance on the AMER region's Egress NAT nodes on zscalerone.net, zscalertwo.net, zscalerthree.net, zscloud.net and zscaler.net clouds. This maintenance is scheduled for Saturday at 6:00 PM Pacific Time on Mar 14, 2026 (Sunday, Mar 15, 2026 01:00 AM UTC), and can take up to 4 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available after ...
Scheduled Maintenance on APAC region's Egress NAT nodes - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be performing a scheduled maintenance on the APAC region's Egress NAT nodes on zscalerone.net, zscalertwo.net, zscalerthree.net, zscloud.net and zscaler.net clouds. This maintenance is scheduled for Saturday at 6:00 AM Pacific Time on Mar 14, 2026 (Saturday, Mar 14, 2026 01:00 PM UTC), and can take up to 4 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available afte...
Scheduled Maintenance on EMEA region's Egress NAT nodes - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net
Started:
investigating
The Zscaler Site Reliability Engineering team will be performing a scheduled maintenance on the EMEA region's Egress NAT nodes on zscalerone.net, zscalertwo.net, zscalerthree.net, zscloud.net and zscaler.net clouds. This maintenance is scheduled for Friday at 6:00 PM Pacific Time on Mar 13, 2026 (Saturday, Mar 14, 2026 01:00 AM UTC), and can take up to 4 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available after ...