Windows Client stopped working all of a sudden. User can work on a different computer , Web App works and mobile app works.
We’re Sorry – We’ve run into an issue.
if that doesn’t work try signing out and back in.
We need you to Sign in ! Either your password changed or the server needs your sign-in info again.
We weren’t able to connect. Sign in and we’ll try again. Sign in.
Same Solution for users showing a unknown user in Windows thick client
Tried Quitting the application
Tried restarting the computer
Web https://teams.microsoft.com works.
Start – run –
Teams Folder to Teams.old
Restart Teams client.