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
Madrid IV Data Center issue - zscalertwo.net
majorSource not attested
Last archived state: investigating
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investigating
Zscaler has detected an issue with its Madrid IV data center on the zscalertwo.net cloud and is currently investigating the matter. 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 continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer su...
Seattle Datacenter Issue - zscaler.net
majorSource not attested
Last archived state: investigating
View archived record details
investigating
Zscaler has detected an issue with its Seattle datacenter and is currently investigating the matter. 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 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 chan...
Beijing V Data Center Issue - zscalertwo.net, zscloud.net
majorSource not attested
Last archived state: investigating
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investigating
Zscaler has detected an issue with its Beijing V data center and is currently investigating the matter. 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 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 Kuala Lampur II (KUL2) - private.zscaler.com, 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 Kuala Lampur II (KUL2).These would be available anytime on or after May 1, 2026.RegionLocationNotesAPACKUALA LAMPUR 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 visit:https://...
Reminder Notification for 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 Customer, In accordance with the Zscaler Service Continuity Policy and as previously announced via email notification and Trust on March 13, 2026, we would like to remind you of the upcoming data center expansions at the locations listed below. These would be effective anytime on or after May 12, 2026.Please update your firewall policy rules and any upstream access control lists to allow the new IP address ranges to avoid any service disruption.RegionLocationCIDR...
Singapore IV Datacenter Issue - zscalertwo.net
majorSource not attested
Last archived state: investigating
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investigating
Zscaler is currently investigating reports of an issue with its Singapore IV datacenter. A subset of customers may encounter disconnections, periods of slowness or increased latency. 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 continue to provide updates here as the investigation progresses. For detailed updates, please check the...
Release Upgrade for Zscaler Data Security Posture Management (DSPM) - app.eu.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 April 27th, 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, 27 Apr 2026 06:16:08 UTCThis activity has been completed. Please contact Zscaler Support if you have additional questions.
URL and Cloud App category classification issue - zscalerthree.net
majorSource not attested
Last archived state: investigating
View archived record details
investigating
Zscaler is currently investigating reports of an issue with its Mumbai VI datacenter. 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 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 updates...
Degradation with international destinations from Beijing, Beijing III, Shanghai and Shanghai II Data Centers - zscaler.net, zscalertwo.net, zscloud.net
majorSource not attested
Last archived state: investigating
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investigating
Zscaler is currently investigating reports of an issue with its Beijing, Beijing III, Shanghai and Shanghai II data centers. We are investigating periods of slowness, connection timeouts and/or increased latency. 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 continue to provide updates here as the investigation progresses. For deta...
Operational Resilience Update: Managing Subsea Cable Risk in the Persian Gulf and Beyond - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zdxcloud.net, zpatwo.net, app.zsdpc.net, app.eu.zsdpc.net, zpabeta.net, zsdkone.net, zscalerrisk.net, admin.zscaleranalytics.net, zslogin.net
majorSource not attested
Last archived state: investigating
View archived record details
investigating
Current geopolitical conditions have elevated the risk of potential disruptions to subsea cable infrastructure in the Persian Gulf region.If such events occur, we would expect the primary impact to be localized within the Gulf, including countries such as Iran, Iraq, Qatar, Kuwait, and to a lesser extent the UAE and Saudi Arabia. The most likely effect would be reduced capacity or constrained routing options, which may result in localized performance degradation rather than widespread outages...
