title: Windows container failed to start with error, "failed to create endpoint on network nat: HNS failed with error : Failed to create endpoint."
body: <p>I have been trying Windows Containers on windows server 2016 TP5. Suddenly I started getting error while running a container with port maping option <code>-p 80:80</code></p>
  
  <pre><code>c:\&gt;docker run -it -p 80:80 microsoft/iis cmd
  docker: Error response from daemon: failed to create endpoint sharp_brahmagupta on network nat: HNS failed with error : Failed to create endpoint.
  </code></pre>
  
  <p>I made sure that no other container is running and port 80 on host machine is not being used by any other service.</p>
  
  <p>Did anyone face same issue?</p>