TFS 2015 - TFS Error TF400324 while connecting to TFS using VS2017

mahesh Talluri 6 Reputation points

Hi All,

I tried to connect to TFS 2015 update 3 environment using VS2017 and receiving below error message.

TF400324: Team Foundation services are not available from server
Technical information (for administrator):
The underlying connection was closed: A connection that was expected to be kept alive was closed by the server.

After verifying posts here, cleared catche on my local machine, TFS server and iisreset and restarted TFS server. issue still exists.

I am able to access the application using webconsole but using Visual studio, i am unable to connect to it.

Please suggest a solution to fix this issue.

Visual Studio
Visual Studio
A family of Microsoft suites of integrated development tools for building applications for Windows, the web and mobile devices.
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  1. mahesh Talluri 6 Reputation points

    Hi TianyuSun,

    Thanks for your help. As you suggested we checked logs from server end and found that issue caused because of TLS connection. after making necessary changes to the TLS config, we are able to access the application using visual studio.

    1 person found this answer helpful.
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  2. Ken Tucker 5,846 Reputation points