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
Scheduled Maintenance Extended - EMEA Region - 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 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
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 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
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 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.
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...
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...
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
minorSource not attested
Last archived state: resolved
View archived record details
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
minorSource not attested
Last archived state: resolved
View archived record details
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
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: 2026-06-17 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
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 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.
