Incident History
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[Extended] Urgent Scheduled Maintenance Notification for F5 Distributed Cloud Regional Edge Sites in Sydney – Impact: Degraded Performance
May 18, 21:00 UTC Completed - The scheduled maintenance has been completed. May 18, 19:50 UTC Update - Dear Valued Customer,We would like to inform you that the ongoing maintenance …
[Scheduled] Cloud | Singapore Maintenance
Type: Maintenance Duration: 2 hours Affected Components: Singapore May 18, 20:00:00 GMT+0 - Identified - During this time period, our engineering team will be performing network infrastructure upgrade on Cloud …
Active - Microsoft Fabric / Power BI / Power BI Embedded - Degraded performance in multiple regions
Impact Statement: Starting from 13:59 UTC on 18 May 2026, customers using Microsoft Fabric - including Power BI and PowerBI Embedded - may be experiencing delays or failures while interacting …
Reminder Notification for Upcoming New DCs and Expansions - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zpatwo.net
Dear Customer, In accordance with the Zscaler Service Continuity Policy and as previously announced via email notification and Trust on April 1st, 2026, we would like to remind you of the upcoming New DCs and …
[해결 됨] MemStore 클러스터 신규 생성 및 삭제 지연
- 영향도: MemStore 클러스터 신규 생성 및 삭제 지연 현상 복구 완료
Active - Microsoft Fabric / Power BI - Degraded performance in multiple regions
Impact Statement: Starting from 13:59 UTC on 18 May 2026, customers using Microsoft Fabric - including PowerBI and PowerBI Embedded - may be experiencing delays or failures while interacting with …
[확인필요] MemStore 클러스터 신규 생성 및 삭제 지연
- 영향도: MemStore 클러스터 신규 생성 및 삭제 지연
Melbourne II Datacenter Scheduled Maintenance - IPv6 Enablement - zscaler.net, zscalertwo.net, zscloud.net
Zscaler will be enabling IPv6 at our Melbourne II (MEL2) Data Center. During the maintenance window the services through MEL2 Data Center will be restarted in phases to minimize the …
Warsaw II Datacenter Scheduled Maintenance - Service Expansion - zscaler.net, zscloud.net
Zscaler will be expanding its global data center footprint and performing maintenance at our Warsaw II (WAW2) data center. We expect minimal to no impact to services during the maintenance …
Alerts and Data Irregularities - US and EU region
May 18, 16:25 UTC Resolved - Between 10:30 UTC and 13:32 UTC on May 16th, some customers in the US and EU regions may have experienced delayed data in queries, …
Urgent Scheduled Maintenance Notification for F5 Distributed Cloud Regional Edge Sites in Sydney, San Jose, Toronto and Sao Paulo – Impact: Degraded Performance
May 18, 16:00 UTC Completed - The scheduled maintenance has been completed. May 18, 11:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as …
Grafana K6 metrics processing and test runs degradation
May 18, 15:42 UTC Resolved - This incident has been resolved. May 18, 14:30 UTC Monitoring - We've stabilized the system and test runs no longer result in timeout. There …
Support cases cannot be submitted
May 18, 15:41 UTC Resolved - The incident is resolved and support cases can be submitted again. May 18, 15:17 UTC Monitoring - We have implemented a fix. New support …
GUA (Guatemala City) on 2026-05-18
May 18, 15:30 UTCCompleted - The scheduled maintenance has been completed.May 18, 14:00 UTCIn progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.May 13, 18:24 …
SYD (Sydney) on 2026-05-18
THIS IS A SCHEDULED EVENT May 18, 15:00 - 21:00 UTCMay 14, 03:48 UTCUpdate - We will be performing scheduled maintenance in SYD (Sydney) datacenter on 2026-05-18 between 15:00 and …
Madrid IV (MAD4) Datacenter Network Maintenance - zscalertwo.net
Zscaler will be performing hardware maintenance in Madrid IV (MAD4) Datacenter.Maintenance window: Start: 2026-05-19 18:00 UTC End: 2026-05-19 21:00 UTC (Local Time 2026-05-19 20:00 - 2026-05-19 23:00 CEST) Update - …
Incident: Huddle AI summaries not being generated
Some Slack users experienced issues where Huddle AI summaries weren't being generated. Users also appeared to be showing as in a huddle after it had ended.We've fixed both issues. Missing …
Remote preview failing on Workers with attached Durable Object
May 18, 14:00 UTCResolved - Cloudflare identified an issue affecting the remote preview feature between 15:00 and 19:46 UTC. Workers configured with both a remote binding and a Durable Object …
Urgent Scheduled Maintenance Notification for F5 Distributed Cloud Regional Edge Sites in Montreal, B-Ashburn and Atlanta – Impact: Degraded Performance
May 18, 11:01 UTC Completed - The scheduled maintenance has been completed. May 18, 06:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as …
Bot Management Issues
May 18, 09:56 UTCResolved - This incident has been resolved.May 15, 16:55 UTCIdentified - The issue has been identified and a fix is being implemented.May 15, 14:57 UTCInvestigating - Cloudflare …
[ICM-5025] Essential Maintenance on the Imperva data center in Buenos Aires, Argentina
May 18, 09:21 UTC Completed - The scheduled maintenance has been completed. May 18, 04:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as …
[ICM-5016] Essential Maintenance on the Imperva data center in Ashburn, VA
May 18, 09:01 UTC Completed - The scheduled maintenance has been completed. May 18, 03:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as …
[Scheduled] CDN | Purge and Statistics Maintenance
Type: Maintenance Duration: 2 hours Affected Components: Purge, Statistics May 18, 09:00:01 GMT+0 - Identified - Maintenance is now in progress May 18, 11:00:00 GMT+0 - Completed - Maintenance has …
Ask Red Hat - System updates
May 18, 08:30 UTC Completed - The scheduled maintenance has been completed. May 18, 06:30 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as …
Elevated errors on Claude Haiku 4.5
May 18, 08:07 UTC Resolved - This incident has been resolved. May 18, 07:28 UTC Monitoring - A fix has been implemented and we are monitoring the results. May 18, …
Madrid IV (MAD4) Datacenter Network Maintenance - zscloud.net
Zscaler will be performing hardware maintenance in the Madrid IV (MAD4) Datacenter.Maintenance window,Start: 2026-05-19 16:00 UTCEnd: 2026-05-19 19:00 UTC(i.e. 2026-05-19 18:00 - 21:00 Local Time) Update - Tue, 19 May …
Issues with Cloudflare Log Explorer
May 18, 06:33 UTCResolved - This incident has been resolved.May 18, 05:57 UTCIdentified - The issue has been identified and a fix is being implemented.May 18, 05:37 UTCInvestigating - Cloudflare …
[Scheduled] Cloud | Luxembourg Maintenance
Type: Maintenance Duration: 2 hours Affected Components: Luxembourg, Luxembourg, Luxembourg May 18, 05:00:00 GMT+0 - Identified - During this time period, our engineering team will be performing scheduled infrastructure upgrades …
Urgent Scheduled Maintenance Notification for F5 Distributed Cloud Regional Edge Sites in Mumbai and Osaka – Impact: Degraded Performance
May 18, 03:00 UTC Completed - The scheduled maintenance has been completed. May 17, 22:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as …
Scheduled Maintenance – Toll-Free Number Provisioning and GCV Purchasing and Porting of US & Canada
May 17, 21:00 EDT Completed - The scheduled maintenance has been completed. May 15, 21:00 EDT In progress - Scheduled maintenance is currently in progress. We will provide updates as …
Openshift AI cluster addon patch updates
Openshift AI cluster add-on patch updates. For more information, see the change log. Type: release_note Regions: global Resources: openshift Type: release_note Update Time: Fri Sep 04 2026 13:13:28 GMT+0000
New region in India Mumbai Airtel
New region in India, Mumbai - Airtel A new region in India, Mumbai - Airtel, is available. The new region is in-mum and the domain name is in2.icr.io. You can …
Functional updates and fixes made available on 09 April 2026 are now available in more regions
Functional updates and fixes made available on 09 April 2026 are now available in more regions. Regions supporting new functionality and fixes: Montreal (ca-mon) Chennai (in-che) Sydney (au-syd) Sao Paulo …
Urgent Scheduled Maintenance Notification for F5 Distributed Cloud Regional Edge Sites in Chennai and Dubai – Impact: Degraded Performance
May 17, 21:45 UTC Completed - The scheduled maintenance has been completed. May 17, 16:45 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as …
[EXTENDED] Planned Maintenance Notification for F5 Distributed Cloud CDN Global Application Services – Impact: Degraded Performance
May 17, 16:30 UTC Completed - The scheduled maintenance has been completed. May 17, 12:16 UTC Update - Dear Valued Customer,We would like to inform you that the ongoing maintenance …
Cloud | Tokyo Incident Details
Type: Incident Duration: 2 hours and 2 minutes Affected Components: Tokyo May 17, 14:33:43 GMT+0 - Investigating - We are currently experiencing an outage in our Tokyo region with our …
Urgent Scheduled Maintenance Notification for F5 Distributed Cloud Regional Edge Sites in Tokyo, San Jose, Jakarta, Melbourne – Impact: Degraded Performance
May 17, 14:00 UTC Completed - The scheduled maintenance has been completed. May 17, 10:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as …
Scheduled Maintenance for Cloudflare Access
May 17, 13:00 UTCCompleted - The scheduled maintenance has been completed.May 17, 12:00 UTCIn progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.May 14, 04:57 …
Urgent Scheduled Maintenance Notification for F5 Distributed Cloud Regional Edge Sites in New York, Dallas, Seattle – Impact: Degraded Performance
May 17, 11:00 UTC Completed - The scheduled maintenance has been completed. May 17, 06:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as …
Urgent Scheduled Maintenance Notification for F5 Distributed Cloud Regional Edge Sites in Ashburn, TelAviv, Hong Kong and Chicago – Impact: Degraded Performance
May 17, 07:00 UTC Completed - The scheduled maintenance has been completed. May 17, 02:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as …
[INC-1042] Issues with Imperva Management Portal Configuration Changes
May 17, 06:36 UTC Resolved - The incident has been resolved and normal service levels have been restored for propagation of changes in the Imperva Management Portal. May 17, 05:42 …
Ambala (QAA) Rerouted Traffic
Engineering has confirmed that Ambala (QAA) POP has been fully restored. Customers may have experienced elevated intermittent errors or periods of latency while traffic was rerouted from 01:27 to 03:26 UTC. This …
Urgent Maintenance - zdxcloud.net
The Zscaler SRE team will be performing an urgent maintenance on the zdxcloud.net cloud. This maintenance is scheduled for Sunday at 03:15 AM UTC on 17th May, 2026, and can …
Ambala (QAA) Rerouted Traffic
Update: The responding escalation manager erroneously marked the incorrect status page component in their original post which caused the wrong title to appear within customer support chat and email threads. …
Ambala (QAA) Rerouted Traffic
Traffic in Ambala (QAA) has been temporarily rerouted. All other locations and services are unaffected.
GPT5.5 Performance Degradation
Status: ResolvedAll impacted services have now fully recovered.
Elevated error rates on requests to multiple models
May 16, 18:24 UTC Resolved - This incident has been resolved. May 16, 18:18 UTC Monitoring - A fix has been implemented and we are monitoring the results. May 16, …
Planned Maintenance Notification for F5 Distributed Cloud CDN Global Controller – Impact: Degraded Performance
May 16, 10:30 UTC Completed - The scheduled maintenance has been completed. May 16, 00:30 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as …
[해결 됨] 일부 프로젝트 콘솔에서 Kubernetes Engine 서비스 조회 불가
- 영향도: 일부 프로젝트 콘솔에서 Kubernetes Engine 서비스 조회 불가 현상 복구 완료 일부 프로젝트 콘솔에서 Certificate Manager 서비스 조회 불가 현상 복구 완료
[처리 중] 일부 프로젝트 콘솔에서 Kubernetes Engine 서비스 조회 불가
- 장애 현황: 일부 프로젝트 콘솔에서 Kubernetes Engine 서비스 조회 불가 현상 지속 발생 중 (추가) 일부 프로젝트 콘솔에서 Certificate Manager 서비스 조회 불가 현상 발생 중 - 진행 상황: …