>>My users are forced to re-login after 20 minutes. Despite setting the sessionstate to 240 minutes in web.config and the session time out also to 240 minutes in IIS. Any ideas how to make this work. OS is Windows 2000 Server.
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>Hmm... maybe you can't make it LARGER than machine.config but you can make it smaller. Have you tried to modify this setting in machine.config to a larger number?

Hi Bob. I've upped machine.config to the same value (240) and the users are still forced to login again after 35 minutes.