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
Experience Center – SSO Error When Accessing Support Tab - zslogin.net
majorSource not attested
Last archived state: investigating
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investigating
Zscaler is investigating an issue impacting Experience Center customers, where users may encounter an SSO error when navigating to the Support tab within the Experience Portal.Impact: Customers attempting to access the Support tab through the Experience Center portal may be unable to successfully authenticate via SSO. All other platform functionalities remain unaffected.Workaround:Customers can continue to access the Support Portal using the following validated workaround:Log in to an alterna...
China Premium Access Plus Shanghai Datacenter (Shanghai VI) Network Maintenance - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
majorSource not attested
Last archived state: investigating
View archived record details
investigating
Shanghai VI DC network providers have advised maintenance work as below. During the maintenance window, China Premium Access Plus services within these data centres may experience intermittent disconnections.Start Time: 2026-04-08 14:00:00 UTCEnd Time: 2026-04-08 15:00:00 UTC(Datacenter Local Time 2026-04-08 22:00 - 2026-04-08 23:00 China Standard Time (UTC+8:00))Reason of Maintenance: Provider advised maintenance.Impact During Maintenance: Intermittent connectivity might be observed du...
Upcoming Extranet Virtual IP Address Announcement - zscloud.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 26, 2026, we would like to notify you of the new Virtual IP addresses (VIPs) for the Zscaler Extranet Application Support rollout.These new Extranet VIPs can be used to terminate IPSec VPN tunnels with Extranet connectivity at the locations listed below. The VIPs will be displayed on the Zscaler Config page for ease of access and visibility.&n...
Upcoming Extranet Virtual IP Address Announcement - zscalerthree.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 26, 2026, we would like to notify you of the new Virtual IP addresses (VIPs) for the Zscaler Extranet Application Support rollout.These new Extranet VIPs can be used to terminate IPSec VPN tunnels with Extranet connectivity at the locations listed below. The VIPs will be displayed on the Zscaler Config page for ease of access and visibility. Us...
Upcoming Extranet Virtual IP Address Announcement - zscalertwo.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 26, 2026, we would like to notify you of the new Virtual IP addresses (VIPs) for the Zscaler Extranet Application Support rollout.These new Extranet VIPs can be used to terminate IPSec VPN tunnels with Extranet connectivity at the locations listed below. The VIPs will be displayed on the Zscaler Config page for ease of access and visibility. Us...
Upcoming Extranet Virtual IP Address Announcement - zscaler.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 26, 2026, we would like to notify you of the new Virtual IP addresses (VIPs) for the Zscaler Extranet Application Support rollout.These new Extranet VIPs addresses can be used to terminate IPSec VPN tunnels with Extranet connectivity at the locations listed below. The VIPs will be displayed on the Zscaler Config page for ease of access and visibilit...
Zscaler has analyzed the supply chain compromises affecting the Trivy security scanner and LiteLLM. Analysis confirms no impact to Zscaler platforms, products, or internal systems, including AI Guard.As a best practice customers should review their environments for the following impacted versions:Trivy: Container images v0.69.5–v0.69.6LiteLLM: Versions 1.82.7 and 1.82.8.Actions if you have an impacted version:Update/Revert: Upgrade Trivy to v0.69.7 or late...
Frankfurt VI Datacenter Scheduled Maintenance - zscaler.net
majorSource not attested
Last archived state: investigating
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investigating
Zscaler will be expanding its global data center footprint and performing maintenance at our Frankfurt VI (FRA6) 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/zscaler.net/cenrMaintenance Window:Start time is March 27, 3:00 pm PDT (March 27, 22:00 UTC)End time is Marc...
Planned Maintenance Activity for ZPA platform service - private.zscaler.com
majorSource not attested
Last archived state: investigating
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investigating
We will be performing planned maintenance on our platform infrastructure in the Prod US region to enhance availability and resiliency. Some customers may witness below impact during this maintenance window:Momentary disconnect and auto-reconnect of zcc.Any active session will be disconnected and logged under ZPA User Activity logs as “MT_CLOSED_TLS_CONN_GONE_SCIM_USER_MOVED”Important Note: No action is required from customers and this communication is only intended to info...
Cloud Browser Isolation issue for Frankfurt Region - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com
majorSource not attested
Last archived state: investigating
View archived record details
investigating
Zscaler has identified an issue with Cloud Browser Isolation (CBI) impacting customers in Frankfurt Region. Affected customers may experience issue with new isolation session for Frankfurt region.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.Update - Wed, 25 Mar 2026 14:36:16...
