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
Planned Maintenance Activity for ZPA authentication service - private.zscaler.com
majorSource not attested
Last archived state: investigating
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investigating
We will be performing planned maintenance on our ZPA authentication platform infrastructure to enhance availability and resiliency. Some customers may witness below impact during this maintenance window:Brief retries or elevated latency for new auth requests might be seen during connection re‑establishment.Transient errors during auth is possible; retry should succeed.Important Note: No action is required from customers and this communication is only intended to inform in advance.Plea...
Sydney V Data Center online - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
majorSource not attested
Last archived state: investigating
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investigating
Dear Zscaler Customer,You are receiving this notice in accordance with the Zscaler Service Continuity Policy.As part of our effort to enhance our Security Cloud’s robustness and performance, Zscaler will be bringing online a new Sydney V (SYD5) data center. This facility will be added to the public resolution service (Auto Geo Proximity) on March 19, 2026What if I have more questions? Contact Zscaler Support via the “Support” link at the top-right of the Zscaler...
Zscaler is aware and investigating reports on an issue with ZCC Network errors on its zscalerone.net Cloud. Affected users may experience 'network connection failed' errors when attempting to log into Zscaler Client Connector (ZCC). Users who are already logged in can access services normally.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 a...
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...
San Francisco IV (SJC4) Datacenter Network Maintenance - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com
majorSource not attested
Last archived state: investigating
View archived record details
investigating
Zscaler will be performing hardware maintenance in San Francisco IV (SJC4) Datacenter.Maintenance window: Start: 2026-03-19 06:00 UTC End: 2026-03-19 14:00 UTC (Local Time 2026-03-18 23:00 - 2026-03-19 07:00)Update - Thu, 19 Mar 2026 11:59:25 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
SaaS Application Activity Data Not Displaying in Activity Logs - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net
majorSource not attested
Last archived state: investigating
View archived record details
investigating
Activity Logs are currently not displaying SaaS application activity data. Zscaler is actively working to resolve this issue.Who is impacted?ZIA customers who have onboarded and configured Data-at-Rest scanning for SaaS applications may temporarily be unable to view SaaS-related activity data in Activity Logs.When will this be resolved?A fix is currently being deployed and is expected to be completed across all Zscaler clouds by March 22, 2026.What are my next steps?No action is required from...
What is changing?Zscaler is deprecating individual administrative User Interfaces (UIs). Customers must migrate to ZIdentity and Experience Center, Zscaler’s centralized administrative and insights platform, to take advantage of new features and innovations.Who is impacted?All customers not currently using ZIdentity for administrative purposes must complete the migration to have access to new features and innovations.Key InformationAccess Experience Center: To use the latest administrative ...
Zscaler is investigating an issue with the Zscaler Microegmentation's log forwarding service via Log Streaming Service (LSS) on its private.zscaler.com cloud. The logs forwarding via LSS is temporarily disabled. This does not impact the core Microsegmentation functionality and all the logs will continue to be visible in the Administration UI.We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler c...
Site review is used by customers and their users to submit URL categorization and review requests to Zscaler. To provide a more secure environment for our ZIA customers, Zscaler is refining how the Site review portal authorizes URL recategorization and review requests. Previously, the portal accepted requests if either the Source IP or the X Forwarded For header belonged to a Zscaler IP address range. As part of a security enhancement, we are removing reliance on the X Forwarde...
Zscaler has detected an issue with Zscaler Client Connector Portal Issue on its zscalerthree.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.Root cause- The issue was caused by a software defect introduced during a recent system update.Latest Update - Mon, 16 Mar 202...
