I'm on the same LAN as my server and I can always connect without issues. I have 5 KF2 Servers running on mine. All proper ports forwarded. I'm not sure what could be your issue. I'm going to look into your logs a little closer. I think I had a similar problem when I was initially putting a server online. It was port forwarding related.
Edit: If delete the default .bat file that comes with the KF2 server and verify files like 3 times in a row. I had a corrupted install before as well that verified fine 5 times before it noticed their was a problem. Can you compress your whole server and send it? Just wondering if it's a Server issue or a computer issue. It could be some kind of dll issue. Have you repaired VC 2010 Redist x64? and DX9 Redist?
Thanks for posting and confirming your server is working on the same LAN.
I don't think it's an install problem as I have reinstalled several times and did another fresh install with the latest BETA.(last install I didn't even change the web admin port)
I and other players can connect and play perfectly, it's only at the end of the game, win or lose the server just hangs. The last entry in the server window is always NetComeGo: Close IpNetDriverSteamworks_1 IpNetConnectionSteamworks.
Can you tell me exactly what ports you have forwarded?
It does seem to have created some dmp files today if anyone knows how to analyse them.