Incident History
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Elevated error rates on the Claude API
Jun 19, 08:45 UTC Resolved - This incident has been resolved. Jun 19, 08:37 UTC Monitoring - A fix has been implemented and we are monitoring the results. Jun 19, …
MRS (Marseille) on 2026-06-19
Jun 19, 08:01 UTC Completed - The scheduled maintenance has been completed. Jun 19, 00:01 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as …
Elevated errors for Claude Opus 4.8
Jun 19, 07:17 UTC Resolved - This incident has been resolved. Jun 19, 07:03 UTC Monitoring - A fix has been implemented and we are monitoring the results. Jun 19, …
Scheduled Maintenance Extended - AMER Region - zscloud.net
The Zscaler Site Reliability Engineering team will be extending the scheduled maintenance for AMER Region by two hours. As part of our standard maintenance process, all logs will be collected …
Cybersecurity Insight Report, Company Risk Score, and Patient Zero security alerts issue - zscaler.net, zscloud.net, zscalerthree.net
Zscaler has detected an issue with the Cybersecurity Insight Report, Company Risk Score, and Patient Zero security alerts on the zscaler.net, zscloud.net, and zscalerthree.net Clouds.We will continue to provide updates …
chatgpt.com access issues
Status: ResolvedAll impacted services have now fully recovered.Affected components Login (Operational)
TXL (Berlin) on 2026-06-19
Jun 19, 05:00 UTC Completed - The scheduled maintenance has been completed. Jun 19, 00:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as …
Urgent Scheduled Maintenance Notification for F5 Distributed Cloud Network Infrastructure in Multiple locations – Impact: Non-Disruptive
Jun 19, 05:00 UTC Completed - The scheduled maintenance has been completed. Jun 18, 21:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as …
Cloudflare pages build failures
Jun 19, 00:36 UTC Resolved - This incident has been resolved. Jun 18, 21:44 UTC Monitoring - A fix has been implemented and we are monitoring the results. Jun 18, …
Authentication Service Upgrade - zslogin.net
Zscaler will perform planned maintenance for the Authentication Service between 11:30 UTC and 13:30 UTC on Friday, June 19, 2026. This maintenance includes feature enhancements and bug fixes designed to …
inmum1 and inmum2 zones in IBM data center
in-mum-1 and in-mum-2 zones in IBM data center Power Virtual Server offers the in-mum-1 and in-mum-2 zones as data centers in Mumbai, India. For more information about the data center …
IBM Cloud Kubernetes Service worker node fix packs are available
IBM Cloud Kubernetes Service worker node fix packs are available. Worker node fix packs can be applied by updating or reloading the worker node in classic infrastructure, or replacing the …
Red Hat OpenShift on IBM Cloud worker node fix packs are available
Red Hat OpenShift on IBM Cloud worker node fix packs are available. Worker node fix packs can be applied by updating or reloading the worker node in classic infrastructure, or …
NRT (Tokyo) on 2026-06-18
Jun 18, 23:00 UTC Completed - The scheduled maintenance has been completed. Jun 18, 15:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as …
[ICM-4962] Essential Maintenance on the Imperva data center in Melbourne, Australia
Jun 18, 22:55 UTC Completed - The scheduled maintenance has been completed. Jun 18, 22:49 UTC Verifying - Verification is currently underway for the maintenance items. Jun 18, 13:00 UTC …
Scheduled Maintenance Extended - EMEA Region - zscloud.net
The Zscaler Site Reliability Engineering team will be extending the scheduled maintenance of the EMEA region's datacenters on zscloud.net cloud by 3 hours. During this extended maintenance window the ZIA …
Manchester II Datacenter Scheduled Maintenance - Service Expansion - zscaler.net
Zscaler will be expanding its global data center footprint and performing maintenance at our Manchester II (MAN2) data center. We expect minimal to no impact to services during the maintenance …
Shanghai II Datacenter Scheduled Maintenance - Service Expansion - zscaler.net, zscloud.net
Zscaler will be expanding its global data center footprint and performing maintenance at our Shanghai II (SHA2) data center. We expect minimal to no impact to services during the maintenance …
Madrid III Datacenter Scheduled Maintenance - IPv6 Enablement - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Zscaler will be enabling IPv6 at our Madrid III (MAD3) Data Center. During the maintenance window the services through MAD3 Data Center will be restarted in phases to minimize the …
Stockholm III Datacenter Scheduled Maintenance - IPv6 Enablement - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Zscaler will be enabling IPv6 at our Stockholm III (STO3) Data Center. During the maintenance window the services through STO3 Data Center will be restarted in phases to minimize the …
Zurich I Datacenter Scheduled Maintenance - Service Expansion - zscaler.net
Zscaler will be expanding its global data center footprint and performing maintenance at our Zurich I (ZRH1) data center. We expect minimal to no impact to services during the maintenance …
BKK (Bangkok) on 2026-06-18
Jun 18, 22:00 UTC Completed - The scheduled maintenance has been completed. Jun 18, 19:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as …
Hong Kong III Datacenter Scheduled Maintenance – IPv6 Enablement - zscaler.net, zscloud.net
Zscaler will perform scheduled maintenance at our Hong Kong III (HKG3) Data Center to complete preparatory work for future IPv6 enablement. During the maintenance window, services through the HKG3 Data Center …
Third party service provider incident resulting possible delays for our support services
The third party provider issue affecting Support Ticketing System services has been fully resolved. All Fastly Customer Support services and CRM systems have been restored and are operating normally. Ticket …
Issues with actions in the Grafana IRM mobile app
Jun 18, 18:50 UTC Resolved - This incident has been resolved. Thank you for your patience. Jun 18, 18:09 UTC Monitoring - We've verified a fix in our staging environment …
Third party service provider incident resulting possible delays for our support services
We have an update regarding the ongoing Informational affecting Support Ticketing System. Our provider has reported that a contributing factor has been identified and they are working on a fix. …
Washington I Datacenter Scheduled Maintenance - IPv6 Enablement - zscaler.net, zscalertwo.net, zscloud.net
Zscaler will be enabling IPv6 at our Washington I (WAS1) Data Center. During the maintenance window the services through WAS1 Data Center will be restarted in phases to minimize the …
SGP1 Network Maintenance
Jun 18, 17:30 UTC Completed - The scheduled maintenance has been completed. Jun 18, 14:30 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as …
Third party service provider incident resulting possible delays for our support services
Our engineers have been informed that our Customer Relationship Management (CRM) provider is currently experiencing an incident. As a result, you may experience slightly delayed responses from our Support team …
Delayed Events
Jun 18, 12:33 EDT Resolved - This incident has been resolved. Jun 18, 12:22 EDT Monitoring - A fix has been implemented and we are monitoring the results. Jun 18, …
Degraded k6 cloud UI performance
Jun 18, 16:21 UTC Resolved - This incident has been resolved. Thank you for your patience. Jun 18, 14:04 UTC Update - We are continuing to monitor for any further …
Vault Radar
Status: ResolvedThe backlog of scan jobs has cleared.Affected components HCP Vault Radar (Operational)
Loki data source-managed alert rules not visible in the Grafana Cloud Alerting UI
Jun 18, 14:08 UTC Resolved - This incident has been resolved. Jun 18, 08:04 UTC Monitoring - A fix has been implemented and we are monitoring the results. Jun 17, …
LAX (Los Angeles) on 2026-06-18
Jun 18, 14:01 UTC Completed - The scheduled maintenance has been completed. Jun 18, 08:01 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as …
SEA (Seattle) on 2026-06-18
Jun 18, 14:00 UTC Completed - The scheduled maintenance has been completed. Jun 18, 08:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as …
Media reuploading and VOD trimming issue
Jun 18, 13:44 UTC Resolved - This incident has been resolved. Jun 18, 13:11 UTC Monitoring - A fix has been implemented and we are monitoring the results. Jun 18, …
Increased error in Instant Live
Jun 18, 13:27 UTC Resolved - The incident has been resolved. Jun 18, 11:39 UTC Monitoring - Video delivery for Live and VOD in the impacted region has returned to …
Zero Trust Underlying Storage Maintenance
Jun 18, 13:00 UTC Completed - The scheduled maintenance has been completed. Jun 18, 12:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as …
DFW (Dallas) on 2026-06-18
Jun 18, 12:01 UTC Completed - The scheduled maintenance has been completed. Jun 18, 06:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as …
Degraded Domain Registration experience
Jun 18, 12:00 UTC Resolved - Between 2026-06-18T12:05UTC and 2026-06-18T16:25UTC new registrar customers faced issues adding a payment method or existing registrar customers faced issues with updating their default payment …
SSO login errors for some ChatGPT Enterprise workspaces
Status: ResolvedAll impacted services have now fully recovered.Affected components Login (Operational)
Data Center Capacity Expansion for Vancouver (YVR)
This scheduled maintenance has been completed.
DNS record creation failures impacting project creation, restore, pause
Jun 18, 10:17 UTC Resolved - This issue has been resolved and all previous held project updates resumed. Jun 18, 08:05 UTC Monitoring - We have deployed a fix and …
Frontend Observability - Suspected commit feature not working as expected
Jun 18, 10:13 UTC Resolved - A fix has been deployed and the issue after monitoring as been fixed. Jun 18, 08:48 UTC Investigating - We’re currently investigating an issue …
LIS (Lisbon) on 2026-06-18
Jun 18, 10:00 UTC Completed - The scheduled maintenance has been completed. Jun 18, 01:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as …
[Scheduled] Cloud | Multiple locations Maintenance
Type: Maintenance Duration: 30 minutes Affected Components: Istanbul, Almaty, Chicago, Paris-2, Manassas, Santa Clara, Tokyo-1, Frankfurt-2, Warsaw, Hong Kong, London-2, Amsterdam, Chester, Luxembourg-2, Incheon, Singapore, São Paulo-2, Luxembourg-3, London, Sines-2, …
[Scheduled] Cloud | Infrastructure Maintenance
Type: Maintenance Duration: 2 hours Affected Components: Dubai, Mumbai, London, Dubai, Dubai, London, Mumbai, London, São Paulo, Mumbai, São Paulo, São Paulo Jun 10, 16:37:30 GMT+0 - Identified - During …
Service disruption on Claude services
Jun 18, 08:19 UTC Resolved - The issue affecting Claude services has been resolved. Impact occurred from 06:55 to 07:40 UTC. Jun 18, 07:41 UTC Identified - We have identified …
[Scheduled] Cloud AI | Sines-3 Maintenance
Type: Maintenance Duration: 1 hour Affected Components: Sines-3, Sines-3 Jun 16, 12:04:11 GMT+0 - Identified - During this time period, our engineering team will be performing Maintenance on our Cloud …
Urgent Maintenance on Dallas I, Dallas II, New York III, New York IV datacenters - zscaler.net
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance on the Dallas I, Dallas II, New York III, New York IV datacenters on the zscaler.net cloud. This …