Hi, got a bit of an issue. Have vncserver (V4.0-5) running on Fedora Core 2. The box running Fedora is on a public IP with no firewall or NAT in front of it. Just an ADSL modem/Router with Firewall/NAT turned off. "vncserver" starts up without errors except a few messages about security policy file and font paths and stuff. When I use a local Remote Desktop Client from KDE to VNC into it, it works without problems. But when I use WinXP (TightVNC Viewer), I get "Failed to Connect to Server" error on the client side. The WinXP PC is on the same network behind the same Router, same LAN etc. and is also on a Public IP. On doing a Packet capture using ethereal, I see the WinXP PC sending a TCP message to the vncserver machine and the vncserver machine responds with an ICMP message of "Destination unreachable (Host administratively prohibited) i.e. Type 3, Code 10. I have no idea what's going on. Any ideas? TechRanj