sessionState time out not working

Question

I've set the sesstionstate time out to be 60 i.e. 1 hour. But, users are still getting session expired messages after 20min.

we are using Windows Server 2008 to host the asp.net application. could anyone please tell me why could session expire in 20min please?

I'm using windows authentication. below is my web config:

<sessionState  timeout="60" />

Answer 1

Check the IIS Session amount. It can be vary from the .NET session amount.

Configure Session Time-out (IIS 7)
See also this question

By default, the session expires when the user has not requested or refreshed a page in the ASP application for 20 minutes