title: HoloLens device portal not available
body: <p>When connecting HoloLens via USB to my computer, the device portal is still not available after setting it up as explained in the <a href="https://developer.microsoft.com/en-us/windows/holographic/install_the_tools" rel="nofollow noreferrer">install tools page</a>. </p>
  
  <p>All I get in the browser 127.0.0.1:10080 is the generic "<em>unable to connect</em>" page.</p>
  
  <p>Is there any way to know what is failing? What could I check? Any tip will be appreciated!</p>
  
  <p>EDIT: browsers used: Edge, Firefox and Chrome.</p>
  
  <p>EDIT2: Hololens development mode is on.</p>