Users may be unable to connect to multiple Microsoft 365 services.
Potentially impacted services include:
- Microsoft Outlook
- Microsoft Teams
- SharePoint Online
- Microsoft Copilot 365
- Microsoft Defender XDR
Scope of impact
This issue may affect users attempting to access the affected Microsoft 365 services.
Microsoft has redistributing connection traffic across their worldwide infrastructure, and are moving additional traffic off the affected infrastructure to further reduce load. They’ve also restarting affected servers to return them to service. In parallel, they are investigating whether the elevated traffic reflects a genuine increase in requests or a shift in how traffic is being routed across their infrastructure.
Next update by:
Next update by: Thursday, November 12, 2026, at 4:00 PM