IIS on the destination server logged an HTTP 200 status code, indicating that the request completed successfully. Also, the win32 status has changed to 64, which maps to ERROR_NETNAME_DELETED. This status code generally indicates that the client (ARR being the 'client' in this case) disconnected before the request completed. Cause The ARR server reported a timeout, which is where you should look f
![Troubleshooting 502 errors in ARR - Internet Information Services](https://cdn-ak-scissors.b.st-hatena.com/image/square/d6e4cb632c7025e9f5e05fd314fbf6dcd6144e8d/height=288;version=1;width=512/https%3A%2F%2Flearn.microsoft.com%2Fen-us%2Fmedia%2Fopen-graph-image.png)