title: HTTPERR log: Request_Cancelled (while troubleshooting WCF service)
body: <p>I am trying to troubleshoot a "connection was forcibly closed by the remote host" error on a WCF client accessing a WCF self-hosted service. I was looking at the httperr logs in System32\LogFiles\HTTPERR on the service-side machine and each time I see that error on my client, I see entries in the log with my service's endpoint URI. The reason is "Request_Cancelled". </p>
  
  <p>I can't find anything anywhere about what that reason signifies. I can guess, but I'd like to know for sure, as it must have some relation to the errors I am seeing in my client.</p>
  
  <p>What is "Request_Cancelled" in the HTTPERR log? And as a bonus, can you shed any extra light on my WCF issues?</p>