Earlier this year, we had updated or built several XenApp 5 farms on Windows Server 2008 SP2. We are heavily provisioned, and not long after deployment, we’d started to receive numerous reports from customers or our own implementation teams indicating that they would see XenApp sessions start, and then exit almost immediately. This behavior was replicable and persistent, and would often result in numerous service calls.
I’d seen this in a few places in Microsoft TechNet and Citrix Support forums, and we’d run hours worth of Wireshark captures, debugs, dumps, and eventually opened tickets with Citrix and Microsoft. We noted in our troubleshooting in the lab that this was isolated to the Windows Server 2008 platform, specifically SP2. Our Microsoft team eventually identified the issue and was able to replicate and develop a public hotfix. After doing more informal research and surveying of Citrix peers, I found this to be much more prevalent than I’d imagined – when it happens, it happens a LOT and can be extremely disruptive and frustrating to troubleshoot or even work around.
The Microsoft hotfix and KB article here is a direct result of working with Microsoft engineering and support on this particular issue – I hope that this insight and information is able to help others with this problem, as common as it seems to be!
Published Citrix application starts and then exits immediately on a Windows 2008 SP2-based Citrix server (KB 2721802)