Quote:That’s what I’m doing but I need to figure out what’s the root cause for this issue
So read what it says, and do it:
Quote: either turn on IncludeExceptionDetailInFaults (either from ServiceBehaviorAttribute or from the <servicedebug> configuration behavior) on the server in order to send the exception information back to the client, or turn on tracing as per the Microsoft .NET Framework SDK documentation and inspect the server trace logs.
Without actual information - and we have none, and can get none - nobody can tell what the problem might be.
So step one of debugging applies: gather information! Without it, you have no idea where to start looking.