Get HTTP Sub status Number for Troubleshooting

When you get an error like 401,404 or 500 you want to troubleshoot it, the first thing you should do is determine what “type” (i.e. HTTP sub status).

Go to %SYSTEMROOT%\System32\LogFiles\W3SVC########\

Replace ########with the number in the above screen

EX: %SYSTEMROOT%\System32\LogFiles\W3SVC86032275\

The W3C log entries look like the following, with the HTTP status, substatus, and Win32
error codes highlighted.

httplog

For all HTTP Status code, visit here : The HTTP status code in IIS 7.0, IIS 7.5, and IIS 8.0