visual studio 2015 - TF400324 Team Foundation services are not available

Question

i have a problem in team foundation when i want connect to tfs server with VS.

error at connect time :

TF400324: Team Foundation services are not available from server <URL>.
Technical information (for administrator):
The server committed a protocol violation. Section=ResponseHeader Detail=Header name is invalid

but i connect with browser to tfs server and can't connect with VS.

tnx to all :)

Answer 1

Try clear both local TFS cache and Visual Studio Cache, then try it again.

1. ?Close all Visual Studio instances.

2. clear visual studio cache under

   %APPDATA%MicrosoftVisualStudio
   

3. clear TFS cache under

   %LocalAppData%MicrosoftTeam Foundation{version}Cache
   

4. Go to Control Panel -> User Accounts -> Manage your Credential -> Windows Credential, select the TFS url to remove it.
5. Restart your Visual Studio to re-connect to your TFS Server.

If that still not work, just try adding following code to your TFS web.config file (C:Program FilesMicrosoft Team Foundation Server 14.0Application TierWeb Servicesweb.config):

<configuration>
      <system.net>
            <settings>
                  <httpWebRequest useUnsafeHeaderParsing="true"/>
            </settings>
      </system.net>
</configuration>

---

UPDATE:

Try below things :

• Run below command to reset the user data, then try it again.

  cd C:Program Files (x86)Microsoft Visual Studio 14.0Common7IDE,

  devenv.exe /resetuserdata

• Try run as another user with command: runas /netonly /user:<account> devenv.exe
• Reset IIS and application pool

If that still not work, I suggest removing the VS first (clean uninstall), then reinstall it again..