Microsoft and AT&T customers affected by outages – What you should know

According to tracking site Downdetector, there were widespread outages on the Microsoft Teams and Outlook networks as well as on AT&T on Thursday morning.

At 9 a.m. ET, about 4,000 outages were reported on Microsoft Teams, up from fewer than 300 an hour earlier. Downdetector also found a smaller outage on Microsoft Outlook, with reports of more than 1,000 outages at 9 a.m. ET.

According to Downdetector, AT&T landline and cellular internet outage reports also rose to over 4,000 as of 9 a.m. ET on September 12.

TODAY has reached out to AT&T and Microsoft for comment on this issue.

Microsoft reported an issue on its Service Health Status page at 7:46 a.m. ET, indicating that “users may be unable to access one or more Microsoft 365 services.”

It's unclear if it's related to the AT&T outage, but Microsoft said the issue is with a third-party vendor.

“We have been working with the Internet service provider (ISP) and determined that a change in their managed environment had an impact,” the statement said. “The ISP has reverted the change and we are now seeing signs of recovery. We continue to monitor network telemetry data to ensure full recovery.”

AT&T experienced a large-scale power outage in February, affecting over 60,000 customers.

This is a developing story, please check back later for updates.