Terminal Server and Citrix troubleshooting

I have been working in the IT industry as system / network manager for over 15 years and like most of my colleagues, I have a large collection of troubleshooting links and favorites. I decided to put them on a website for easy access, wherever I am.

Since my work environment consists of Microsoft Windows Terminal Servers with Citrix as the main add-on, these links are heavily biased towards those technologies. But more often than not, troubleshooting requires a "jack-of-all-trades", so you will also find information about the Windows registry, security, SQL and networking on these pages.

Please, don't send me any questions by email, I don't have time to answer individual questions. However, I am a frequent contributor to the microsoft.public.windows.terminal_services and alt.os.citrix newsgroups. If you post your question there, I'll try to answer it, together with my fellow MVPs.

Latest TS related KB articles:

951047 - When you try to use the Terminal Services resource authorization policy to connect to a Windows Server 2008-based computer, the connection may fail

951871 - The presence status changes to Away for all Terminal Server users when an administrator locks the desktop or lets the screen saver run in Communicator 2007

951032 - You may receive an error message on a Windows Server 2003-based computer that has Citrix Presentation Server 4.0 installed

951749 - Stop error message on a terminal server that is running Windows Server 2003 Service Pack 1 or Windows Server 2003 Service Pack 2: "Stop 0x000000AB (SESSION_HAS_VALID_POOL_ON_EXIT)"