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.
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. 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
Services have recovered following remediation of a network configuration issue by our infrastructure partner. We are continuing to monitor the environment to ensure 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. 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. Our systems remain fully operational, and we will continue to monitor the situation closely to ensure ongoing stability.
Tokyo IV and Tokyo V Data Center Issue - zscalerthree.net
Provider resolved: . The notice publication date does not establish the outage start.
resolved
The performance issue has been resolved. The degradation was observed between 0800–1000 Japan time following resumption of business activity post a holiday period, and recovered without any intervention. The environment is confirmed stable.
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
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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
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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 ...
