title: WCF client with proxy settings set to "Use automatic configuration script"
body: <p>I'm currently developing an application that needs to communicate with a webservice on the internet. Internet explorer is until know the only application that is connecting to the internet through a proxy server. </p>
  
  <p>The proxy settings are setup to "Use automatic configuration script". </p>
  
  <p>I have kept the default setting </p>
  
  <pre><code>&lt;binding useDefaultWebProxy="true" /&gt;
  </code></pre>
  
  <p>And additionally set </p>
  
  <pre><code>&lt;security mode="TransportCredentialOnly"&gt;
          &lt;transport clientCredentialType="Windows" proxyCredentialType="Basic"
            realm="" /&gt;
          &lt;message clientCredentialType="UserName" algorithmSuite="Default" /&gt;
  &lt;/security&gt;
  </code></pre>
  
  <p>But no luck. I keep getting "(407) Proxy Authentication Required."</p>
  
  <p>I have done some Google-ing, but the solutions do not seem to fit my situation.</p>
  
  <p>Short update:
  The application should run with the default user credentials, and use those credentials 
  through NTLM to authenticate with the proxy. But even when I set the client to do that it doesn't seem to help.</p>