Strange Microsoft Teams bug leaves users scratching their heads

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(Image credit: fizkes / Shutterstock)
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Microsoft has taken steps to remedy a strange bug affecting users of its collaboration platform (opens in new tab) Teams, introduced with a recent update.

Yesterday, Teams (opens in new tab) users began to report a strange pop-up asking them to “select a certificate” for us-prod.asyncgw.teams.microsoft.com before logging into the software.

The prompt was a source of confusion for many, with users unsure what the message meant and which of the multiple options provided was correct.

According to Microsoft, the issue was exclusive to Teams (opens in new tab) users served by its infrastructure in North America, although some users in APAC, Europe and South America also appeared to encounter the pop-up.

Microsoft Teams fix

Microsoft confirmed it was aware of the issue (tracked under TM261288 in the admin center) via its status feed (opens in new tab) on Twitter and has since implemented a fix. Ironically, the update in question was designed to optimize the performance of the platform.

“We determined a recent deployment, designed to improve service performance, is inadvertently causing impact,” Microsoft explained. “We reverted a recent update that caused this issue and have validated that service has been restored.”

Although some users may still be encountering the issue, a simple restart should kick Teams back to its pre-update state and resolve the problem.

It’s not clear, however, whether new features and performance upgrades introduced in the offending update have also been temporarily withdrawn as part of the rollback.

Joel Khalili
News and Features Editor

Joel Khalili is the News and Features Editor at TechRadar Pro, covering cybersecurity, data privacy, cloud, AI, blockchain, internet infrastructure, 5G, data storage and computing. He's responsible for curating our news content, as well as commissioning and producing features on the technologies that are transforming the way the world does business.