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Sys.WebForms.PageRequestManagerServerErrorException 12031

Asked 2008-10-27T12:05:05.713
19

I'm occasionaly getting the following popup from an AJAX.NET application

Sys.WebForms.PageRequestManagerServerErrorException: An Unknown error occurred while processing the request on the server. The status code returned from the server was: 12031

From the Microsoft kb that status code indicates a ERROR_INTERNET_CONNECTION_RESET, but it doesn't state what was the underlying issue the triggered the error in the first place.

How can I log/trace/etc the underlying error that generated the popup?

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1

I've got this error in UpdatePanel with autopostback Dropdown after big delay (>20 min) between change dropdown selection.

Try increase session timeout in web.cofig. For example:

<sessionState mode="InProc" cookieless="true" timeout="720"/>;
answered 2011-06-30T13:49:39.660

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