I have a server (Win2k3 R2 SP2, Domain Controller) that stops responding to RDP connections about every two weeks. A reboot fixes the problem.
To troubleshoot the issue, we've reinstalled SP2. We've also installed the Hotfix referenced in KB 948496 (http://support.microsoft.com/?kbid=936594
). We've also disabled TCP/IP Offloading. None directly fix the problem; I schedule a reboot after each of the aforementioned "fixes" so it's just the reboot that helps.
The server also runs Syamntec AntiVirus.
The Event Logs don't reveal anything.
I'm not sure what the Netstat output is while the server isn't responding to RDP connections as it's usually a priority to fix Remote Desktop by rebooting.
There are several more of the same servers in other buildings. While one or two has experienced this issue a few times, none have been as chronic as this one.