Asp.net forms authentication cookie not honoring timeout with IIS7

Question

Authentication cookies seem to timeout after a short period of time (a day or so). I am using Forms Authentication and have the timeout=\"10080\" with slidingExpiration=\"fa

Answer 1

I recently had the same problem where my site was timing out every 20 minutes even though I set the session timeout to 2 hours. I found that it was because IIS worker process was timing out every 20 minutes: http://technet.microsoft.com/en-us/library/cc783089(WS.10).aspx