Microsoft is investigating a networking issue after tens of thousands of users around the world reported they could not access services such as Teams and Outlook.

Microsoft Teams Apple Silicon
In a series of tweets posted on the Microsoft 365 Status Twitter account, Microsoft said it is taking steps to isolate the problem, but did not mention how widespread it is.

“We are investigating issues affecting several Microsoft 365 services,” Microsoft said, to which it later added: “We have rolled back a network change that we believe is causing an impact. We are monitoring the service as the rollback takes effect.”

Online deactivation tracker Down detector shows that nearly 4,000 people in India were affected and more than 5,000 in the UK reported that Outlook was unavailable. Australia, Japan and the United Arab Emirates also saw spikes in disruption reports.

Microsoft Teams is used by more than 280 million people worldwide across businesses and schools, according to the company. Other services affected by the outage reportedly include Microsoft Exchange Online, SharePoint Online and OneDrive for Business.

Microsoft also said it was investigating a connectivity issue with its cloud computing service, Azure, affecting what it called a “subset of users.” We’ll update this article when we find out more.

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