ASP.NET session has expired strange error

Posted on 2012-09-10
Last Modified: 2012-09-11
I have ReportViewer controls on several Visual Studio 2008 pages and whenever I choose a radio button to run the report, I immediately get an "ASP.NET session has expired" error right in the report viewer where the report should be showing up.  The error is in just plain text, it is not the full screen ASP.NET session has expired error.

I do not think this is an issue with the session tiemout value in IIS as this error occurs immediately after I open a webpage and not after a period of time.  I am running IIS 6 and I have the maximum number of worker processes in the web garden set to 1 in the Application Pool.  The session timeout in the website that is beign used is set to 60 minutes.
Question by:zintech
    LVL 20

    Accepted Solution

    Does this happen in only IE or all browsers?

    Have you installed any addons in IE? If yes, try disabling them and try again.
    LVL 19

    Expert Comment

    by:Daniel Van Der Werken
    What does the event viewer and your IIS and application logs show?

    Author Comment

    The solution appeared to be to go into the web.config file and add the property "Cookieless=true"

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