title: ControlChannelTrigger Background Task in Universal Windows Apps and StreamMessageWebSocket
body: <p>I am trying to use a following example but I have migrated it to UWP: <a href="https://code.msdn.microsoft.com/windowsapps/ControlChannelTrigger-91f6bed8" rel="nofollow">https://code.msdn.microsoft.com/windowsapps/ControlChannelTrigger-91f6bed8</a>
  Everything works perfectly except that it doesn't work for Windows Mobile. When I deploy it to Windows 10 desktop everything is fine but when I deploy it to phone I get the following exception: Exception from HRESULT: 0x80072F75. Please advise, I'm having this issue for the last one year.
  Exactly in this place:</p>
  
  <pre><code>            await socket.ConnectAsync(serverUriInstance);
  </code></pre>