Microsoft Azure outage on 29 September 2026
Major outageAn email when it goes down, and when it’s back.
“Observing improvements - Intermittent request failures and increased latency across Azure OpenAI, Azure AI Foundry, and Cognitive Services”
On 29 September, Microsoft Azure had a major outage affecting Azure OpenAI, Azure AI Foundry and Cognitive Services, with intermittent request failures and increased latency. The incident began at 13:39 UTC and ended at 18:56 UTC, lasting 5 hours 17 minutes. Its title was later updated to say Microsoft was observing improvements. Several other services also reported problems at the same time, including Claude, Cursor, Notion, Hostinger, and Thomson Reuters Legal's CoCounsel.
- When
- 13:39–18:56 UTC
- How long
- 5 h 17 min
- Microsoft Azure, 30 days before
- No other outages
At the same time
Started in the hour before or during it
And 221 lesser-known services. Problems at the same time are a clue, never proof that one caused another.
Where this comes from
Stackpulse reads Microsoft Azure’s official status page at azure.status.microsoft every minute. The times above are when it reported the problem; the summary is written from its updates and checked against them.
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