Session time out setting in ASP.Net

Question

I have set session time out to 9 hours in web.config file something like this:

“<sessionState mode="InProc" timeout="540" />

But often users complain that they are facing time out in less than 9 hours of inactivity and the time interval after they are timed out also varies.

I was wondering if session time out is dependent on any of the below settings in IIS:

1. Session time setting
2. Idle- time out setting for Application pool
3. Recycling setting.

Please advise. Also, how do I check session time out setting in IIS 7.0?

Answer 1

The session will be lost when the ApplicationPool recycles. That's one of the IIS settings that you mentioned. To set only the timeout in the web.config will not be enough. You need to adjust the setting in IIS.

Here is a link I found while I was looking into the same problem.

Also, this question was very useful: Losing Session State