vb.net - .NET Application receiving 503 Service Unavailable error when calling web service -


This is an unusual problem I'm experiencing, but recently a report of errors from users of a production application In the system is starting to do. This 503 service unavailable error was detected when calling for the web service to be used by the application.

Now there is a strange part, only one user is affected by this problem. Other users of the application have not reported any errors. When the user logged on to a different machine working for another user, he still got the error.

Any thoughts that are happening here?

I do not know what's going on - but maybe ask what your server does, good the way.

Take a look at the event log, and in fact on the IIS logs. Probably 503 errors you may have had, and probably from users who have not been reported. Try to correlate the event log entries with IIS entries.

You can also consider running PerfMon logs to collect performance counter for the server. Start small - just select some performance counter if there is a problem and nothing is interesting in the performance counter, add more.

Finally, consider the possibility that the server is telling you the truth, maybe for some time there are no available connections or threads.


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