title: TFS PowerTools Proxy Authentication Required HTTP code 407
body: <p>Am behind a corporate proxy server and when attempting to use TFS Power Tools 2015 to view history or indeed any operation from the explorer extension I get a <strong>"HTTP code 407: Proxy Authorization Required"</strong> when connecting to Visual Studio Team Services online @ xyz.visualstudio.com.</p>
  
  <p>Encountered a similar issue with VS2015 but resolved it by using the default proxy setting as mention in an answer in this question <a href="https://stackoverflow.com/questions/13717815/visual-studio-error-407-proxy-authentication-required?wb48617274=83767D5D">Visual Studio Error: (407: Proxy Authentication Required)</a> </p>
  
  <p>Tried applying the same setting to TF.exe.config and TFPT.EXE.config but got no joy, the error still occurs. Any hints or tips as to how to resolve would be appreciated!</p>
  
  <pre><code>&lt;system.net&gt;
      &lt;settings&gt;
          &lt;ipv6 enabled="true"/&gt;
          &lt;servicePointManager expect100Continue="false" /&gt;
      &lt;/settings&gt;
      &lt;defaultProxy useDefaultCredentials="true" enabled="true"&gt;
          &lt;proxy usesystemdefault="True" /&gt;
      &lt;/defaultProxy&gt;
  &lt;/system.net&gt;
  </code></pre>