While it is rare in Windows 2003 and above to see any TCP stack corruption it does occure every once in a while?  Did you notcie that you can not uninstall the TCP services via the GUI as it is now considered a “core component” of the OS.

You can still unisntall this via the command line:

 netsh interface ip reset C:resetlog.txt

Warning this will reset all configuration–you either have to imput new IP information prior to restart or have physical console access to get back in.