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damnit95's avatar
damnit95
Copper Contributor
Oct 08, 2019
Solved

Teams error code - 6

Hello,   One of our user have an issue when he try to connect to the Teams applications, here is the error messages:     The user is able to connect to Teams online with no error message ...
microsoft teams
office 365
  • Vijprateek's avatar
    Vijprateek
    Oct 14, 2019

    damnit95 May I know what was the issue, I am also having the same with one of my user

Ronald_S66's avatar
Ronald_S66
Copper Contributor
May 12, 2020

damnit95 Old thread but might be able to help out other users;

 

OK, I've been having the same issues with users for weeks now and it was driving me crazy. I finally found a solution.

 

1. Close Teams

2. Remove all Cached Data as described by Betty Gui

3. This was our magic step - Make sure there are no weird proxy settings running. Either in the Windows Settings -> Proxy or through Internet Explorer -> Internet Options -> Connections (even if you don't use it anymore, like us). Make sure for all proxy settings you have "Use a proxy server" to off and enable "Automatically detect settings". 

4. Make sure your user is connected to "vanilla internet" - so no VPN or whatever (important for the first time login, otherwise it still doesn't work)

5. Open Teams and now it should work

 

After this, for our users we could reconnect to a VPN connection.

 

It seems that the error here is caused by a Proxy running over a regular ethernet or WiFi line.

We were able to identify this as we had some users in just 1 country with this issue, and some of them had very old proxy settings still enabled.

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