Microsoft 365 is down for thousands of users

Having trouble accessing Microsoft 365 online today? You’re not alone. The site is down for thousands of users, according to outage tracker DownDetector. As of 9 AM ET, more than 23,000 people have reported issues attempting to access the site.

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A post on X from the Microsoft 365 Status account says: “We’re investigating an issue where users may be unable to access multiple Microsoft 365 services. Please look for MO888473 in the admin center for more details and further updates.” 

Ironically, Microsoft’s own service health page for its online products and services shows that everything is fine. However, a different Microsoft service status page acknowledges that “users may be unable to access one or more Microsoft 365 services.” 

Initially, Microsoft said that it was reviewing network telemetry, looking at any recent changes to its networking infrastructure, and working with a third-party Internet Service Provider to understand the underlying cause.

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In an update to the aforementioned MO888473 alert, Microsoft said that by working with the ISP, it was able to confirm that a change in the ISP’s managed-environment impacted such services as Microsoft Teams, Exchange Online, and SharePoint Online. The ISP has since reverted the change, and now Microsoft said that it’s starting to see signs of recovery. The company added that it will continue to monitor its telemetry data ensure a full recovery

DownDetector first reported that the problem seemed to be related to issues at Microsoft Azure, the company’s cloud-based environment for enterprises and other organizations. The site also reported possible issues with Microsoft Services when connecting through AT&T Fiber in the US East region.

Many of the people responding to Microsoft’s post on X agreed that it seems to be an issue with AT&T. Some who switched from AT&T to a backup system were then able to access the affected Microsoft services. 

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