Outage in Azure Devops
Availability Degradation - Login loops
Resolved Minor
August 18, 2026 - Started about 21 hours ago
- Lasted about 5 hours
Incident Report
Summary AI Generated
Azure DevOps experienced a 5.2-hour availability degradation affecting core services across all major regions globally, where users were caught in sign-in/sign-out loops. The root cause was identified as tenant conditional access policies (CAP) triggering a known Azure DevOps bug that caused login looping. Engineers resolved the issue by disabling a feature flag across all regions, with users advised to clear their browser cache and close all tabs if issues persisted.
Our engineers are currently investigating an event impacting Azure DevOps involving sign in/out loops. The event is being triaged and we will post an update as soon as we know more.
Components affected
Azure Devops Core services Azure Devops Brazil Azure Devops United Kingdom Azure Devops Asia Pacific Azure Devops Europe Azure Devops Canada Azure Devops United States Azure Devops India Azure Devops AustraliaTrusted by 1,000+ teams
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UPDATE
The mitigation has been successful rolled out to all regions and our engineers are monitoring telemetry. Customers are encourged to close all tabs and clear their browser cache if they continue to experience issues.
UPDATE
Investigation showed customers are hitting distinct issues, mostly around tenant conditional access policies (CAP) triggering a known issue in Azure DevOps that may result in looping logins. Customers are encourged to close all tabs and clear their browser cache if they experience issues. Our engineers are disabling a feature flag to provide a broad mitigation to these issues.
UPDATE
Our engineers are currently investigating an event impacting Azure DevOps involving sign in/out loops. The event is being triaged and we will post an update as soon as we know more.
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