title: Visual Studio internet connection failue
body: <p>Last night my Visual Studio was working fine.  Today it fails to connect to the internet (can't download rss feeds or connect to my TFS Server).</p>
  
  <p>My internet connection is working fine (I am using it to write this).</p>
  
  <p>What could cause this?  Are there settings that I can get at to fix it?</p>
  
  <p>The only clue I have is that Resharper is giving me some weird errors.  </p>
  
  <pre>System.ArgumentException: Invalid XML. Missing required tag  for type 'System.Security.Policy.PolicyStatement'.
  System.Configuration.ConfigurationErrorsException: An error occurred creating the configuration section handler for system.net/settings: Invalid XML. Missing required tag  for type 'System.Security.Policy.PolicyStatement'. (C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\devenv.exe.Config line 155) ---> System.ArgumentException: Invalid XML. Missing required tag  for type 'System.Security.Policy.PolicyStatement'.</pre>
  
  <p>I have checked the file it mentions (devenv.exe.Config) and it is the same as a coworkers who is having no issues.</p>
  
  <p>Things I have tried:</p>
  
  <ul>
  <li>Disabling Resharper
  
  <ul>
  <li>Causes the error message to go away, but does not fix the issue.</li>
  </ul></li>
  <li>Rebooting</li>
  <li>System Restore</li>
  <li>"netsh Winsock reset" + reboot</li>
  </ul>
  
  <p>Any advice would be appreciated.</p>
  
  <hr>
  
  <p>More info:<br>
  When I try to connect to my TFS Server I get this error:</p>
  
  <pre>TF31001: Team Foundation cannot retrieve the list of team projects from Team Foundation Server MyTFSServer. The Team Foundation Server returned the following error: Error creating the Web Proxy specified in the 'system.net/defaultProxy' configuration section..</pre>
  
  <p>I have no idea what that means</p>