Getting HTTP error 500 after a successful login to Exchange Administrative Center, I'm cluess where OWA writes HTTP 500 errors to.

I can neither see any relevant entries in the Windows Event Log, nor find any log files beside the standard IIS logs that contain no further details.

Being an ASP.NET application, I would have expected to see some log files with detailed stack trace and exception/error messages for the HTTP error 500.

My question:

Are there any log files that contain details about an HTTP error 500 in OWA/Exchange Administrative Center?

  • I didn't actually find out, and simply reinstalled Exchange to fix it. Still, the next time, I would probably go this way: 1.) Modify the web.config for customErrors="Off" 2.) Remove the error 500 handler entry from web.config, too 3.) Hope that now the error 500 is being sent in details to my client if I call it locally. – Uwe Keim Apr 25 '19 at 14:46

According to your description, you could refer to the following KB( which also applies in Exchange 2016). Follow the steps in the article. Exchange 2013 Unable to access ECP Encounter “500 Unexpected Error”

Also, what about checking the IIS log in C:\inetpub\logs\LogFiles\W3SVC1

  • Thank you. I am not looking for IIS log file location, since I do know them and since they do not contain any application specific error details. – Uwe Keim Apr 15 '19 at 5:05
  • I want to confirm that whether you can’t find any relative error logs in the event viewer on your mailbox server actually? This link: The HTTP status code in IIS 7 and later versions support.microsoft.com/en-sg/help/943891/… records different status code and their meanings, check whether it helps? – joyceshen Apr 15 '19 at 9:06

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