VS2012 – Proxy Authentication error when connecting to Team Foundation Services

If you are behind a Proxy server that requires authentication, you might receive a ‘407: Proxy Authentication Required’ error when trying to connect to Team Foundation Services.

In VS2010, you could work around this by opening the ‘start’ page in Visual Studio and enter your credentials when prompted, but this doesn’t work in VS2012.

For VS2012 follow the steps below:

  1. Go to Tools РExtensions & Updates
  2. On the left-hand menu, click ‘Updates’
  3. Click the link to enter your credentials
  4. Close the extension manager and connect to TFS.

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