Microsoft Teams down: video call service back online

Teams App
(Image credit: Shutterstock / dennizn)
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UPDATE: As of 5.17pm ET, Microsoft says (opens in new tab) it is, "currently rolling out a mitigation worldwide. Customers should begin seeing recovery at this time, and we anticipate full remediation within 60 minutes."

Top videoconferencing (opens in new tab) tool Microsoft Teams (opens in new tab) has suffered a major outage affecting millions of users across the world. 

The online collaboration (opens in new tab) platform started suffering issues around 3:30PM ET, with Microsoft quickly confirming there were issues with the service worldwide.

The incident was apparently part of a company-wide issue as Microsoft saw outages across a number of its services, with the likes of Xbox Live (opens in new tab), Office 365 and Azure also down.

Microsoft Teams outage

Outage tracker site Downdetector (opens in new tab) showed a huge spike in complaints and issues for Microsoft Teams users across the world.

In a tweet on its Microsoft 365 status account, the company confirmed that it was, "investigating an issue for access to multiple M365 services."

Microsoft then said that the outage was due to an issue concerning, "a recent change to an authentication system". It planned a rollout swiftly, however this process took longer than expected (opens in new tab).

Over 100 million users have registered Microsoft Teams accounts, with the service enjoying a huge burst in popularity due to the coronavirus-related lockdown.

This would be the first major outage suffered by Microsoft Teams, and comes as many users in the US were finishing up their afternoon work shift, and Australians are logging on for the new work day.

Mike Moore
Deputy Editor, TechRadar Pro

Mike Moore is Deputy Editor at TechRadar Pro. He has worked as a B2B and B2C tech journalist for nearly a decade, including at one of the UK's leading national newspapers and fellow Future title ITProPortal, and when he's not keeping track of all the latest enterprise and workplace trends, can most likely be found watching, following or taking part in some kind of sport.