Users may be unable to connect to multiple Microsoft 365 services

Updates from Microsoft:
Current status: We’ve validated an alternative health check method on a subset of affected infrastructure, which allowed the servers in that subset to successfully return to service, and we’re now applying this change more broadly. We’re also preparing an automated recovery process to continually detect and restart unresponsive servers, to help keep them in service while this change progresses. Additionally, our review of recent changes has identified a small number of configuration updates that we’re investigating as potential contributors to the issue.

Previous status: While validating the targeted change, we found that many of the affected servers have become unresponsive, which is preventing us from confirming whether the change is effective. We’re restarting these servers so they can come back online with the change in place, and we’re applying the same approach to additional affected portions of our infrastructure to validate the results more broadly.

Scope of impact: This issue may affect users attempting to access the affected Microsoft 365 services.

Next update by: Thursday, November 12, 2026, at 10:30 PM UTC

The following notice has been posted to the microsoft status page. This outage is out of TechPaths control.

*User impact: Users may be unable to connect to multiple Microsoft 365 services.

More info: Potentially impacted services include:

• Exchange Online
• Microsoft Teams
• SharePoint Online
• Microsoft Copilot 365
• Microsoft Defender XDR
• Microsoft Planner
• Microsoft To Do

Current status: While we haven’t identified any recent changes that correlate with the start of impact, our investigation indicates the failed health checks may originate from a specific component on the affected servers that’s responsible for processing them. We’re deploying a targeted change to bypass this component on a subset of servers to validate whether this restores availability, and we’ve taken steps to prevent additional servers from being removed from service while we work to return the affected servers to service. We’re also investigating why affected servers are experiencing elevated processor usage while handling requests.

Scope of impact: This issue may affect users attempting to access the affected Microsoft 365 services.*

For updated information, please visit:
https://status.cloud.microsoft/