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Outage in Zscaler

Administration UI Issue

Resolved Minor
August 03, 2026 - Started 4 days ago - Lasted about 15 hours

Incident Report

Summary AI Generated

Zscaler experienced a 15-hour outage on its zscaler.net cloud affecting Admin UI login, the Zscaler Client Connector portal, and SCIM auto-provisioning. The root cause was identified as a faulty service update, which triggered investigation and development of a hotfix. A controlled, phased rollout of the hotfix was underway, with multiple components restored to normal operation and stability indicators remaining healthy.

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.Latest Update - Tue, 04 Aug 2026 00:39:08 UTCWe continue to make progress with the controlled rollout of the hotfix. Additional service components have now been updated and returned to normal operation, with stability indicators remaining healthy. The team is preparing for the next planned transition step, and we will provide another update as this work progresses.Update - Mon, 03 Aug 2026 11:10:09 UTCZscaler is prioritizing the issue and is actively working to isolate the problem and identify the root cause. We appreciate your patience and understanding during this investigation. Additional updates will be provided as more information becomes available.Update - Mon, 03 Aug 2026 11:59:42 UTCZscaler continues to commit to resolving the issue and is actively engaged in efforts to isolate the cause and determine the root of the problem. Zscaler appreciates your ongoing patience and understanding during this process, and further updates will be provided as new information becomes available.Update - Mon, 03 Aug 2026 13:06:57 UTCThe Zscaler team has identified the root cause as a recent service update. Zscaler teams are actively prioritizing the incident, exploring various mitigation options, and working to restore services.Update - Mon, 03 Aug 2026 14:36:19 UTCZscaler has identified the root cause of this issue, which is related to a recent service update. We are actively working on a fix and are in the process of preparing and validating the build for deployment. We will provide a further update once the fix is ready for production deployment. We appreciate your continued patience.Update - Mon, 03 Aug 2026 18:20:02 UTCWe continue to progress the fix deployment and the validation of the updated build for release. Our teams are actively preparing and validating the build, and we will provide another update once it is ready for production deployment.Update - Mon, 03 Aug 2026 20:55:06 UTCWe are continuing to make progress on the fix deployment through a phased and controlled rollout. As part of this process, we are updating supporting components first before transitioning services to the updated environment. We will share another update as this work progresses.Update - Tue, 04 Aug 2026 00:39:08 UTCWe continue to make progress with the controlled rollout of the hotfix. Additional service components have now been updated and returned to normal operation, with stability indicators remaining healthy. The team is preparing for the next planned transition step, and we will provide another update as this work progresses.

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