I use UltraVNC to control my dedicated server on the internet, with version 3 it worked fine when allowed through the firewall. With version 4 however, even though I allow the process through the firewall it times out and closes. When I disable the firewall though it works perfectly fine. Could it be the port that is getting blocked even though the process is supposedly allowed? Just found that it's blocking game servers running on the same box, so HLSW does not show the server working with the firewall running even though that process is also allowed full access. EDIT: I've tried adding the IP address of the dedi server to the trusted zone of the firewall but this did not help.