I have an environment of 30 physical Windows 2008 R2 SP1 Enterprise servers providing Remote Desktop services running Citrix XenApp 6.5. Over the last 2 months, I've had two instances where one user session was stuck in a "Down" state. The user could not log in or reconnect to the published app because this one session could not be cleared. I was forced to remove the affected server from the published app, clear off all the users, and reboot in order to clear the Down session.
Research brought me to the following KB articles:
http://support.citrix.com/article/CTX128192
http://support.microsoft.com/kb/2383928
I attempted to apply the hotfix, but it was "not applicable to your computer". I opened a ticked with MS and the conclusion was that the hotfix, and subsequent versions of the hotfix, have been superseded by Windows Updates. The hotfix apparently has been rolled into public Windows Updates.
My problem is that this behavior still exists. Has anyone else experienced this and is there a nondestructive method (without rebooting) for clearing out these sessions stuck in a "Down" state? Thanks.