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The Microsoft Teams desktop client gives me the weirdest login problems

%3CLINGO-SUB%20id%3D%22lingo-sub-820092%22%20slang%3D%22en-US%22%3ERe%3A%20The%20Microsoft%20Teams%20desktop%20client%20gives%20me%20the%20weirdest%20login%20problems%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-820092%22%20slang%3D%22en-US%22%3ECan't%20say%20I've%20seen%20this%20before.%20Is%20Teams%20completely%20closing%20after%20the%20login%20box%20or%20what%20happens%20next%3F%20Is%20it%20in%20the%20systray%3F%20etc%3F%3C%2FLINGO-BODY%3E%3CLINGO-SUB%20id%3D%22lingo-sub-820093%22%20slang%3D%22en-US%22%3ERe%3A%20The%20Microsoft%20Teams%20desktop%20client%20gives%20me%20the%20weirdest%20login%20problems%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-820093%22%20slang%3D%22en-US%22%3E%3CP%3E%3CA%20href%3D%22https%3A%2F%2Ftechcommunity.microsoft.com%2Ft5%2Fuser%2Fviewprofilepage%2Fuser-id%2F869%22%20target%3D%22_blank%22%3E%40Chris%20Webb%3C%2FA%3E%26nbsp%3BThe%20Teams%20task%20is%20completely%20closed.%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-SUB%20id%3D%22lingo-sub-820095%22%20slang%3D%22en-US%22%3ERe%3A%20The%20Microsoft%20Teams%20desktop%20client%20gives%20me%20the%20weirdest%20login%20problems%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-820095%22%20slang%3D%22en-US%22%3ETry%20look%20at%20the%20logs%3A%3CBR%20%2F%3E%3CBR%20%2F%3E%3CA%20href%3D%22https%3A%2F%2Fdocs.microsoft.com%2Fen-us%2Fmicrosoftteams%2Flog-files%22%20rel%3D%22noopener%20noreferrer%20noopener%20noreferrer%20noopener%20noreferrer%22%20target%3D%22_blank%22%3Ehttps%3A%2F%2Fdocs.microsoft.com%2Fen-us%2Fmicrosoftteams%2Flog-files%3C%2FA%3E%3C%2FLINGO-BODY%3E%3CLINGO-SUB%20id%3D%22lingo-sub-820059%22%20slang%3D%22en-US%22%3EThe%20Microsoft%20Teams%20desktop%20client%20gives%20me%20the%20weirdest%20login%20problems%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-820059%22%20slang%3D%22en-US%22%3E%3CP%3EToday%20a%20user%20we'll%20call%20user%201%20complained%20that%20since%20a%20few%20days%20or%20so%20he%20has%20to%20use%20the%20web%20app%20because%20his%20desktop%20client%20wont%20login.%20I%20go%20to%20his%20computer%20to%20check.%20The%20login%20prompt%20just%20closes%20itself%20after%20entering%20his%20username.%20I%20test%20if%20I%20can%20log%20in%20with%20my%20user%20on%20his%20computer%3A%20success.%20I%20check%20again%20if%20his%20account%20works%3A%20Teams%20just%20closes%20after%20entering%20his%20username.%20I%20reinstall%20Teams%2C%20same%20behavior.%20I%20delete%20the%20Teams%20cache%20folders%20in%20%25AppData%25%20plus%20all%20user%20credentials%20within%20the%20Windows%20Credential%20Manager.%20Nothing%20changed.%20Web%20app%20login%20still%20works%20fine%20for%20him.%3C%2FP%3E%3CP%3ENow%20comes%20the%20best%20part%3A%20User%201%20goes%20to%20user%202's%20computer%20and%20logs%20out%20user%202.%20He%20then%20tries%20to%20log%20into%20user%202's%20Teams%20desktop%20client.%3C%2FP%3E%3CP%3ESame%20behavior.%20Microsoft%20Teams%20just%20closes%20after%20user%201%20entered%20his%20username.%3C%2FP%3E%3CP%3EUser%202%20wants%20to%20log%20into%20his%20Team%20desktop%20client%20again.%3C%2FP%3E%3CP%3EUser%202%20now%20faces%20the%20same%20issue%20on%20his%20computer.%3C%2FP%3E%3CP%3EMicrosoft%20Teams%20just%20closes%20for%20him.%3C%2FP%3E%3CP%3EUser%201%20infected%20user%202's%20workstation%20with%20this%20login%20bug.%3C%2FP%3E%3CP%3EUser%201%20and%202%20are%20now%20forced%20to%20use%20the%20web%20app%20and%20are%20afraid%20to%20log%20into%20their%20teams%20accounts%20on%20other%20domain%20computers.%3C%2FP%3E%3CP%3EHelp.%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-LABS%20id%3D%22lingo-labs-820059%22%20slang%3D%22en-US%22%3E%3CLINGO-LABEL%3ELogin%3C%2FLINGO-LABEL%3E%3C%2FLINGO-LABS%3E
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GerritB
New Contributor

Today a user we'll call user 1 complained that since a few days or so he has to use the web app because his desktop client wont login. I go to his computer to check. The login prompt just closes itself after entering his username. I test if I can log in with my user on his computer: success. I check again if his account works: Teams just closes after entering his username. I reinstall Teams, same behavior. I delete the Teams cache folders in %AppData% plus all user credentials within the Windows Credential Manager. Nothing changed. Web app login still works fine for him.

Now comes the best part: User 1 goes to user 2's computer and logs out user 2. He then tries to log into user 2's Teams desktop client.

Same behavior. Microsoft Teams just closes after user 1 entered his username.

User 2 wants to log into his Team desktop client again.

User 2 now faces the same issue on his computer.

Microsoft Teams just closes for him.

User 1 infected user 2's workstation with this login bug.

User 1 and 2 are now forced to use the web app and are afraid to log into their teams accounts on other domain computers.

Help.

3 Replies
Can't say I've seen this before. Is Teams completely closing after the login box or what happens next? Is it in the systray? etc?

@Chris Webb The Teams task is completely closed.

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