I have a LAN all with the same version of UDK. I am trying to use the "UDK Game" to start as server to game test a map. Others can see the server that I have started but when they click on join, nothing happens. We are on Windows 7 and the firewall is shut off on all computers.
We tried to play a map that comes with the editor and same thing happens, we can see the server but cannot join it.
Are we not setting up the server correctly?

Any suggestions would be appreciated.