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.
March 2026
Release Upgrade for Zscaler Data Security Posture Management (DSPM) - app.zsdpc.net
majorSource not attested
Last archived state: investigating
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investigating
Zscaler Data Posture Control (DSPM) Operations team will be performing a planned upgrade activity on March 16th, 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, 16 Mar 2026 05:52:18 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Urgent Maintenance - VZEN nodes - zscalertwo.net
majorSource not attested
Last archived state: investigating
View archived record details
investigating
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on the VZEN nodes in zscalertwo.net cloud. The maintenance will happen across VZEN nodes during the window, beginning at 06:30 PM Pacific Time on Saturday, March 14, 2026 (Sunday, March 15, 2026 01:30 AM UTC) and continuing for up to 5 hours. VZEN's services will be restarted as part of this change and service for your end users might be disrupted during the window. All logs will be collected and available ...
Urgent Maintenance on Zurich datacenter - zscloud.net
majorSource not attested
Last archived state: investigating
View archived record details
investigating
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on the Zurich datacenter on the zscloud.net cloud. This maintenance is scheduled for Saturday at 1:00 PM Pacific Time on March 14, 2026 (Saturday, March 14, 2026 8:00 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. Please contact Zscaler Support if you have addit...
Zscaler Client Connector-Based End User Notifications Issue - zscaler.net
majorSource not attested
Last archived state: investigating
View archived record details
investigating
Zscaler has detected an issue with Zscaler Client Connector-Based End User Notifications on 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.Resolved- Issue was related to node.Update - Sat, 14 Mar 2026 06:52:20 UTCZscaler has implemented mitiga...
Scheduled Maintenance Extended - zscaler.net
majorSource not attested
Last archived state: investigating
View archived record details
investigating
The Zscaler Site Reliability Engineering team will be extending the scheduled maintenance of the zscaler.net cloud by 2 hour. 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.Update - Sat, 14 Mar 2026 08:00:18 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
Dubai I Datacenter Scheduled Maintenance - zscaler.net, zscalertwo.net, zscalerthree.net
majorSource not attested
Last archived state: investigating
View archived record details
investigating
Zscaler will be enabling IPv6 at our Dubai I (DXB1) Data Center. During the maintenance window the services through DXB1 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is March 19, 9:00 am PST (March 19, 16:00 UTC)End time is March 19, 3:00 pm PST (March 19, 22:00 UTC)
Dubai I Datacenter Scheduled Maintenance - zscloud.net
majorSource not attested
Last archived state: investigating
View archived record details
investigating
Zscaler will be expanding its global data center footprint and performing maintenance at our Dubai I (DXB1) data center. We expect minimal to no impact to services during the maintenance window. Please update your firewall policy rules and any upstream Access Control Lists to allow all IP addresses for this DCFor more information, please visit:https://config.zscaler.com/zscloud.net/cenrMaintenance Window:Start time is March 19, 9:00 am PST (March 19, 16:00 UTC)End time is March 19, 3:00 ...
Upcoming Data Center Expansions - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zpatwo.net
majorSource 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 March 13, 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 May 12, 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 ser...
Singapore IV Datacenter Scheduled Maintenance - zscaler.net, zscloud.net
majorSource not attested
Last archived state: investigating
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investigating
Zscaler will be enabling IPv6 at our Singapore IV (SIN4) Data Center. During the maintenance window the services through SIN4 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is March 18, 9:00 am PST (March 18, 16:00 UTC)End time is March 18, 3:00 pm PST (March 18, 22:00 UTC)
Manchester I Datacenter Scheduled Maintenance - zscalertwo.net
majorSource not attested
Last archived state: investigating
View archived record details
investigating
Zscaler will be expanding its global data center footprint and performing maintenance at our Manchester I (MAN1) data center. We expect minimal to no impact to services during the maintenance window. Please update your firewall policy rules and any upstream Access Control Lists to allow all IP addresses for this DCFor more information, please visit:https://config.zscaler.com/zscalertwo.net/cenrMaintenance Window:Start time is March 18, 11:00 am PST (March 18, 18:00 UTC)End time is March ...
