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.
August 2026
New Datacenter Expansion Milan IV (MIL4) - zpatwo.net
Source not attested
Last archived state: investigating
View archived record details
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
Source not attested
Last archived state: investigating
View archived record details
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
Source not attested
Last archived state: investigating
View archived record details
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
Source not attested
Last archived state: investigating
View archived record details
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
minorSource not attested
Last archived state: resolved
View archived record details
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
Source not attested
Last archived state: investigating
View archived record details
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
Source not attested
Last archived state: investigating
View archived record details
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...
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...
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
minorSource not attested
Last archived state: resolved
View archived record details
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.
