Azure Cloud network failure

This incident has been resolved.

WarningAzure Networking - Multiple regions - Mitigating

Starting at 07:05 UTC on 25 January 2023, customers may experience issues with networking connectivity, manifesting as network latency and/or timeouts when attempting to connect to Azure resources in Public Azure regions, as well as other Microsoft services including M365, PowerBI.

We've determined the network connectivity issue is occurring with devices across the Microsoft Wide Area Network (WAN). This impacts connectivity between clients on the internet to Azure, as well as connectivity between services in datacenters, as well as ExpressRoute connections. The issue is causing impact in waves, peaking approximately every 30 minutes.

We have identified a recent WAN update as the likely underlying cause, and have taken steps to roll back this update. Our latest telemetry shows signs of recovery across multiple regions and services, and we are continuing to actively monitor the situation.

This message was last updated at 09:43 UTC on 25 January 2023

We are currently investigating this issue.