I've run into this a lot and ended up changing a lot of the internals of how session state works and have _mostly_ eliminated the issue for us. Granted, you sti

I've run into this a lot and ended up changing a lot of the internals of how session state works and have _mostly_ eliminated the issue for us. Granted, you still run into it if you have 2 pages running at the same time, but we see it where sometimes it just doesn't release the state (and it was happening fairly frequently) http://darrenkopp.com/posts/2013/04/10/Playing-with-fire-Optimizing-the-ASPState-internals.html http://darrenkopp.com/posts/2013/04/10/Playing-with-fire-Opt...