Zscaler 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.
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.
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.
Root Cause: Preliminary root cause is attributed to an internal backend infrastructure issue, which has since been fully resolved.
Following the actions previously taken by Zscaler, the incident has been resolved.
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.
August 2026
Reporting and Logging Issue - zscalerthree.net
partialSource not attested
Last archived state: investigating
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investigating
Zscaler has identified a reporting and logging issue affecting the zscalerthree.net cloud. A subset of customers may experience delays or issues with logging and reporting. 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: Zscaler failed over services to a healthy no...
ZTW Cloud Connector: Intermittent ZPA Access Impact for Some VDI/AVD Users - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
partialSource not attested
Last archived state: investigating
View archived record details
investigating
Zscaler is aware of and investigating an intermittent issue affecting a subset of users connecting through ZTW Cloud Connectors from VDI/AVD environments. Impacted users may be unable to access certain ZPA private applications, even though DNS resolution completes successfully.Zscaler has identified an interim mitigation to clear impacted sessions and help restore access while a permanent fix is being developed. Customers experiencing this issue should contact Zscaler Support for assistance w...
Administration UI and User Authentication Issues - zscalertwo.net
Source not attested
Last archived state: investigating
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investigating
Zscaler has detected an issue with the administration UI and user authentication on its zscalertwo.net Cloud. Customers may encounter issues with Administation UI login, Authentication, User Policies, 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 poste...
Zscaler has identified an issue affecting ZPA App Connector connectivity in the China region, impacting services through the Shanghai and Beijing data centers. Affected customers may experience application access failures, including AC connection setup timeout or cannot connect to broker errors. 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 a...
Datacenter Expansion San Francisco IV (SJC4) - zpatwo.net
minorSource not attested
Last archived state: resolved
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resolved
As part of our regular expansion of capacity, we are adding ZPA Public Service Edge nodes to our existing data center in San Francisco IV (SJC4).If you restrict outbound firewall access, please ensure you have added the complete set of published IPs in the URL belowhttps://config.zscaler.com/zpatwo.net/zpaUpdate - Thu, 20 Aug 2026 17:04:14 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
ZPA connectivity issues in China region - private.zscaler.com
Source not attested
Last archived state: investigating
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investigating
Zscaler is investigating an issue with its Beijing III, Shanghai I datacenter on the private.zscaler.com cloud and is currently investigating the matter. 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: Root cause of this issue is attributed to a recent configuratio...
Mexico City I and Mexico City II - Data Center Issue - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com
partialSource not attested
Last archived state: investigating
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investigating
Zscaler is investigating a network connectivity issue affecting some traffic associated with our Mexico City I and Mexico City II Data Centers. Customers may experience intermittent increases in latency and degraded performance. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will provide further updates as additional information becomes avai...
Datacenter Expansion Singapore V (SIN5) - private.zscaler.com
Source not attested
Last archived state: investigating
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investigating
As part of our regular expansion of capacity, we are adding ZPA Public Service Edge nodes to our existing data center in Singapore V (SIN5).If you restrict outbound firewall access, please ensure you have added the complete set of published IPs in the URL belowhttps://config.zscaler.com/private.zscaler.com/zpa
Unexpected Changes to Data Matching and Aggregation Behavior - app.avalor.io, app.eu.avalor.io, app.aps.avalor.io
partialSource not attested
Last archived state: investigating
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investigating
Zscaler has detected an issue with its app.avalor.io, app.eu.avalor.io, app.aps.avalor.io Cloud. Some customers may experience changes in how incoming data is matched, merged, and aggregated, which could lead to differences in normalized results, aggregated outputs, and first-seen or other derived values.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 c...
Datacenter Expansion Capetown IV (CPT4) - zpatwo.net
Source not attested
Last archived state: investigating
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investigating
As part of our regular expansion of capacity, we are adding ZPA Public Service Edge nodes to our new data center in EMEA, Capetown IV (CPT4).If you restrict outbound firewall access, please ensure you have added the complete set of published IPs in the URL belowhttps://config.zscaler.com/zpatwo.net/zpa
