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.
April 2026
Upcoming Data Center Expansion in Zpa - private.zscaler.com
majorSource not attested
Last archived state: investigating
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investigating
As part of our regular expansion of capacity, we are adding additional ZPA Public Service Edge nodes to our existing data center in Chicago II (CHI2) for Zpa cloud.These would be available anytime on or after April 15, 2026.RegionLocationNotesAMERICASCHICAGO IIExpansion of Existing DCThe IP addresses for the DC are part of the already published IP address range.Please update your firewall policy rules along with any upstream ACL(s) to allow the IP address ranges to avoid any service disruptio...
Upcoming Data Center Expansions in ZpaTwo - zpatwo.net
majorSource 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 Chicago II (CHI2) for ZpaTwo cloud.These would be available anytime on or after April 15, 2026.RegionLocationNotesAMERICASCHICAGO IINew DCThe IP addresses for the DC are part of the already published IP address range.Please update your firewall policy rules along with any upstream ACL(s) to allow the IP address ranges to avoid any service disruption.For more information, please ...
Data Center Expansions in ZPATWO - zpatwo.net
majorSource not attested
Last archived state: investigating
View archived record details
investigating
Dear Zscaler Customer,We would like to notify you of the public service edge expansions at the locations listed below. These were brought online recently.RegionLocationNotesAPACSydney VNew DCEMEAWarsaw IINew DCThe IP addresses for these DCs are part of the already published IP address range.Please update your firewall policy rules along with any upstream ACL(s) to allow the IP address ranges to avoid any service disruption.For more information, please visit:https://config.zscaler.com/zp...
Data Center Expansions in ZPA - private.zscaler.com
majorSource not attested
Last archived state: investigating
View archived record details
investigating
Dear Zscaler Customer,We would like to notify you of the public service edge expansions at the locations listed below. These were brought online recently. RegionLocationNotesAPACSydney VNew DCEMEAWarsaw IIExpansion of Existing DCThe IP addresses for these DCs are part of the already published IP address range.Please update your firewall policy rules along with any upstream ACL(s) to allow the IP address ranges to avoid any service disruption.For more information, please visit:https...
New Delhi I (DEL1) 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 New Delhi I (DEL1) Datacenter.Maintenance window: Start: 2026-04-20 14:30 UTC End: 2026-04-20 17:30 UTC (Local Time 2026-04-20 20:00 - 2026-04-20 23:00 IST)
Chennai II (MAA2) 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 Chennai II (MAA2) Datacenter.Maintenance window: Start: 2026-04-17 14:30 UTC End: 2026-04-17 17:30 UTC (Local Time 2026-04-17 20:00 - 2026-04-17 23:00 IST)
Administration UI and Mobile Admin Portal Issue - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
majorSource not attested
Last archived state: investigating
View archived record details
investigating
Zscaler is currently investigating reported issues impacting the Administration UI and Mobile Admin Portal on the zscaler.net, zscalertwo.net, and zscalerthree.net clouds. Customers may experience intermittent slowness, timeouts, and/or increased latency when accessing the Admin UI and/or Mobile Admin Portal. 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)...
The Zscaler Site Reliability Engineering team will be performing a scheduled maintenance on the AMER region's Egress NAT nodes on zscalerone.net, zscalertwo.net, zscalerthree.net, zscloud.net and zscaler.net clouds. This maintenance is scheduled for Sunday at 2:00 AM Pacific Time on Apr 19, 2026 (Sunday, Apr 19, 2026 09:00 AM UTC), and can take up to 4 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available after ma...
The Zscaler Site Reliability Engineering team will be performing a scheduled maintenance on the EMEA region's Egress NAT nodes on zscalerone.net, zscalertwo.net, zscalerthree.net, zscloud.net and zscaler.net clouds. This maintenance is scheduled for Saturday at 6:00 PM Pacific Time on Apr 18, 2026 (Sunday, Apr 19, 2026 01:00 AM UTC), and can take up to 4 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available after ...
The Zscaler Site Reliability Engineering team will be performing a scheduled maintenance on the APAC region's Egress NAT nodes on zscalerone.net, zscalertwo.net, zscalerthree.net, zscloud.net and zscaler.net clouds. This maintenance is scheduled for Saturday at 6:00 AM Pacific Time on Apr 18, 2026 (Saturday, Apr 18, 2026 01:00 PM UTC), and can take up to 4 hours to complete. We expect minimal to no impact to services during the maintenance window. All logs will be collected and available afte...
