Provider resolved: . The notice publication date does not establish the outage start.
resolved
Zscaler teams have successfully deployed the fix during the planned maintenance window. Post-deployment sanity validation has been completed with successful results, and the service remains stable.
Increased CAPTCHA Challenges During Web Access - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Provider resolved: . The notice publication date does not establish the outage start.
resolved
The increased Google CAPTCHA activity has subsided, and this incident is resolved. The investigation linked the repeated challenges to Google’s automated traffic detection. No contributing changes to Zscaler services were identified. A subset of users experienced repeated CAPTCHA prompts when accessing Google services or websites using Google CAPTCHA, interrupting searches and related workflows. Customers who continue to encounter Google CAPTCHA prompts should review Avoiding Google CAPTCHA...
Miami III, Miami IV Datacenter Issue - zscalertwo.net, zscalerthree.net
Provider resolved: . The notice publication date does not establish the outage start.
resolved
Zscaler has isolated the connectivity degradation affecting Miami III and Miami IV to congestion on external ISP network paths. Corrective action is required from the relevant service provider. This incident notification is now closed. Customers experiencing continued impact should contact their ISP to request path optimization. Connecting through an alternate data center may help mitigate the impact; please validate connectivity after failover. Contact Zscaler Support if further assistance i...
Intermittent Connectivity Issues Affecting Plain UDP Tunnels for Branch Connectors and Cloud Connectors in APAC - zscloud.net
Provider resolved: . The notice publication date does not establish the outage start.
resolved
Following the actions previously taken by Zscaler, the incident has been resolved. Our systems remain fully operational, and we will continue to monitor the situation closely to ensure ongoing stability.
Provider resolved: . The notice publication date does not establish the outage start.
resolved
Following the actions previously taken by Zscaler, the incident has been resolved. Our systems remain fully operational, and we will continue to monitor the situation closely to ensure ongoing stability.
Provider resolved: . The notice publication date does not establish the outage start.
resolved
Following the actions previously taken by Zscaler, the incident has been resolved. Our systems remain fully operational, and we will continue to monitor the situation closely to ensure ongoing stability.
Provider resolved: . The notice publication date does not establish the outage start.
resolved
Zscaler has completed post-deployment monitoring and confirmed that all affected services are functioning as expected. Based on continued stability and healthy service checks, we are marking this incident as Resolved.
Provider resolved: . The notice publication date does not establish the outage start.
resolved
Following the actions previously taken by Zscaler, the incident has been resolved. Our systems remain fully operational, and we will continue to monitor the situation closely to ensure ongoing stability.
update
We are receiving positive feedback from multiple customers indicating service recovery. Our teams continue to closely monitor services and will provide further updates as more information becomes available.
update
We have reverted the contributing configuration change and implemented additional adjustments to improve service capacity on ZS2. We are currently validating these changes and monitoring recovery for Zscaler Client Connector sign-in/registration and Mobile Admin Portal access. We will provide another update as validation completes or if service status changes.
update
We are continuing to investigate an issue impacting Zscaler Client Connector sign-in/registration and access to the Mobile Admin Portal for a subset of users on ZS2. Initial mitigation actions did not fully restore service. We identified a contributing configuration change that reduced service capacity for the Mobile Admin Portal on ZS2, which led to intermittent access issues for some users. Our teams are reverting the change and actively applying additional remediation steps to recover affected services. We are monitoring recovery and will provide further updates as more information becomes available.
update
We are investigating an issue impacting Zscaler Client Connector sign-in/registration and access to the Mobile Admin Portal for a subset of users on ZS2. Mitigation actions have been applied and we are now monitoring the service. We will provide another update as more information becomes available.
update
We have identified the root cause of the issue and working on resolution.
update
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 Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.
Legacy Incident Archive
453 archived records restored. These records predate source-at-observation attestation. They are shown as historical ServiceAlert records only and do not establish a provider-reported incident, resolution, duration, or current active state.
July 2026
Dubai II Data Center Issue - zscloud.net
Source not attested
Last archived state: investigating
View archived record details
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
minorSource not attested
Last archived state: resolved
View archived record details
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
Source not attested
Last archived state: investigating
View archived record details
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
minorSource not attested
Last archived state: resolved
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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
Source not attested
Last archived state: investigating
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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
minorSource not attested
Last archived state: resolved
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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
Source not attested
Last archived state: investigating
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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 ...
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
Source not attested
Last archived state: investigating
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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...
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...
