I've recently setup a Windows based XP server using vales guide here:
http://www.eqemulator.net/forums/showthread.php?t=29043
Everything seems to work well on the LAN side of things. I've had multiple XP machines connect with no problems internally. WAN however is another story. I've opened all the proper ports based on some digging within the forums; 5998, 7000-7100 & 9000. Externally (WAN) they can connect and get to the character selection screen and create a character; but once they actually try to enter the world the screen turns black for a period of time and then they get a: "The server is not responding" message and they are kicked back to the server/login screen.
This is happening on external machines using Vista and XP, Intel/AMD single and multi-core cpus. I've come to the conclusion it is most likely a server issue which I cannot figure out.
Does anyone have any advice?