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blue_man's avatar
blue_man
Iron Contributor
Aug 04, 2020
Solved

Microsoft Teams Error Code 0xcaa80000

0xcaa80000

Hi,

 

Has any come across this error code for Teams 0xcaa80000? Seem to be a lot of forum post about Outlook on various forums, but nothing for Teams.

 

I have tried from a different Windows account on the same machine and can login fine. Tried deleting the cache etc. Made sure the time is correct and is auto updating.

 

Teams was signing in previously for the user, but has stopped working today.

 

They can log to the Teams web app fine from the same windows account.

 

Our authentication goes via a local ADFS server.

 

Full message is:

 

We can't connect you

It looks like we can't connect to one of our services at the moment. Please try again later, or contact your helpdesk if the issue persists.

 

0xcaa80000

 

adfs.domain.com

  • blue_man's avatar
    blue_man
    Aug 06, 2020

    ThereseSolimeno 

    I found that deleting the token binding key had resolved the issues for a number of people in Google searches that I did. Only thing is when I deleted the token key I logged into the Teams app and it error'd again. Then as part of a fiddler trace I was doing I kept trying to connect a few times with Teams one after the other and finally the ADFS page popped up to enter the users username and password and it signed in! Unsure if deleting the binding key fixed the issue or not!

     

    C:\Users\BobSled\AppData\Local\Packages\Microsoft.AAD.BrokerPlugin_cw5n1h2txyewy\AC\Microsoft\Crypto\TokenBindingKeys\Keys
    fb47a8d42be514593f982d4b0d7edd08_90cb05ef-cd90-4066-aafe-3397eb8039a5_4068bc0f75fd0f09b9c2c7507f15f982

8 Replies

  • Erangaz's avatar
    Erangaz
    Copper Contributor
    Hi,

    I'm not sure if anyone else will face this issue again, but it happened to me, and it was resolved after I changed my TLS version to 1.2 in Internet Options. I had changed it earlier for some VPN testing.

    Thanks

  • stefanwey-umb's avatar
    stefanwey-umb
    Brass Contributor

    blue_man 

    This may relate to the following articles:
    - https://www.reddit.com/r/sysadmin/comments/190tvru/office_http_404_in_avd/

    -https://www.reddit.com/r/VMwareHorizon/comments/1avofn9/authentication_issues_with_latest_version_of_365

    - https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Anyone-having-issues-with-Outlook-or-Teams-after-latest-Windows/td-p/3009088/page/2

    - https://kb.vmware.com/s/article/97111
    https://www.reddit.com/r/sysadmin/comments/190tvru/office_http_404_in_avd/

     

    • LordDelacroix's avatar
      LordDelacroix
      Copper Contributor

      stefanwey-umb can someone please explain to me why we, those of us in the community, are the ones responsible for continually fixing problems created by this crappy software from a crappy company called Microsoft?

    • blue_man's avatar
      blue_man
      Iron Contributor

      ThereseSolimeno 

      I found that deleting the token binding key had resolved the issues for a number of people in Google searches that I did. Only thing is when I deleted the token key I logged into the Teams app and it error'd again. Then as part of a fiddler trace I was doing I kept trying to connect a few times with Teams one after the other and finally the ADFS page popped up to enter the users username and password and it signed in! Unsure if deleting the binding key fixed the issue or not!

       

      C:\Users\BobSled\AppData\Local\Packages\Microsoft.AAD.BrokerPlugin_cw5n1h2txyewy\AC\Microsoft\Crypto\TokenBindingKeys\Keys
      fb47a8d42be514593f982d4b0d7edd08_90cb05ef-cd90-4066-aafe-3397eb8039a5_4068bc0f75fd0f09b9c2c7507f15f982

      • AlexanderFabech's avatar
        AlexanderFabech
        Copper Contributor

        blue_man 

         

        YOUR THE WINNER! Thanks alot. We searched 2-3 weeks for the resolution/fix, and this works! Thanks!

         

        We removed the complete AAD.BrokerPlugin folder.

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