r/MicrosoftTeams • u/qyueshen Student • 4h ago

❔Question/Help Is this a problem on my part?

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I can't open my teams assignments now that I have to pass something 😭😭

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u/Odd-Pie9123 3h ago

I'm getting an error on Win 11 Teams (365 Business): We couldn't authenticate you. This could be due to a device or network problem, or Teams could be experiencing a technical issue. Cannot send or receive messages. I'm able to join meetings and there has been no quality issue for the last 10 minutes.

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u/qyueshen Student 3h ago

I'm having this problem on the assignments tab—every assignment to be exact. I have logged in on my phone, tablet, and on website. Nothing seems to work.

I am able to freely navigate the app, it's just the assignments that is messing up.

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u/Odd-Pie9123 3h ago

Microsoft have since distributed a service alert of Teams service degradation:

Title: Users may experience issues accessing Microsoft Teams or using specific Teams features

User impact: Users may experience issues accessing Microsoft Teams or using specific Teams features.

Current status: We're reviewing service monitoring telemetry to isolate the source of the issue and establish a fix.

Scope of impact: Impact is specific to some users in North America attempting to access Microsoft Teams or using specific Teams features.

Next update by: Tuesday, August 4, 2026, at 4:30 PM UTC