title: TF400324 Team Foundation services are not available
body: <p>i have a problem in team foundation when i want connect to tfs server with VS.</p>
  
  <p>error at connect time : </p>
  
  <pre><code>TF400324: Team Foundation services are not available from server &lt;URL&gt;.
  Technical information (for administrator):
  The server committed a protocol violation. Section=ResponseHeader Detail=Header name is invalid
  </code></pre>
  
  <p>but i connect with browser to tfs server and can't connect with VS.</p>
  
  <p>tnx to all :)</p>