Provider resolved: . The notice publication date does not establish the outage start.
resolved
Following the actions 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.
Zscaler has implemented preliminary mitigation measures to address the issue. The team is actively monitoring and evaluating the effectiveness of these measures.
Provider resolved: . The notice publication date does not establish the outage start.
resolved
Zscaler has resolved the issue affecting audit log visibility in the admin portal. The underlying cause has been addressed and audit logs are now visible and accessible across all affected clouds.
Provider resolved: . The notice publication date does not establish the outage start.
resolved
Zscaler has resolved the issue preventing a subset of administrators from logging into the Zscaler Admin Console. The issue was caused by a routing defect introduced in a recent build upgrade that caused IDP-based authentication requests to be misrouted to an incorrect region, resulting in a tenant lookup failure and 401 unauthorized error. The build has been successfully rolled back to the previous stable version, and admin console login has been confirmed restored.
Mexico City II Datacenter Issue - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Provider resolved: . The notice publication date does not establish the outage start.
resolved
Zscaler can confirm that the issue has been resolved without any intervention. Preliminary findings indicate that the issue was observed within the network provider’s infrastructure, and our monitoring has confirmed that the network is stable.
Risk360 Data Update and Risk Score Accuracy Issue - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, zscalerrisk.net
Provider resolved: . The notice publication date does not establish the outage start.
resolved
Zscaler has resolved the issue causing interrupted ZPA-related data updates in Risk360. Affected connectors have been successfully reactivated and data updates have resumed across impacted accounts. A code-level fix addressing the underlying cause has been deployed to production. Risk360 data and risk scores are confirmed accurate and the issue is resolved.
Network Connectivity Degradation — Mexico City I and Mexico City II Data Centers - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Provider resolved: . The notice publication date does not establish the outage start.
resolved
Following the routing adjustments applied by Zscaler, service has been restored at the Mexico City I and Mexico City II data centers, and monitoring has confirmed continued stability. The incident is resolved. The routing adjustments remain in place while the third-party provider completes permanent repairs to the affected connectivity.
Provider resolved: . The notice publication date does not establish the outage start.
resolved
Zscaler has resolved an issue where a subset of customers across ZSNet and ZSCloud may have experienced disruption in Cloud NSS firewall log delivery to their configured SIEMs. The issue has been fully resolved and services are confirmed stable.
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.
A fix has been verified and is planned for release in an upcoming production update, with more details to be shared 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.
June 2026
Urgent Maintenance on AMER Region - zscaler.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 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
Source not attested
Last archived state: investigating
View archived record details
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
partialSource not attested
Last archived state: investigating
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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
minorSource not attested
Last archived state: resolved
View archived record details
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
Source not attested
Last archived state: investigating
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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...
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
Source not attested
Last archived state: investigating
View archived record details
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
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 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...
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
minorSource not attested
Last archived state: resolved
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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...
