Not meaning to be rude, just critical :P
Let me be more descriptive

There is a LAN network. My PC is on it. The dedi hosting the Shaiya server is on it. The public IP for the game is set to the WAN ip for the LAN network. I have to connect with the WAN IP because it is set to be the public ip for the game. I cannot do that.
Solution: Loopbacks? If so, then how? I have Microsoft's Loopback Agent, but it doesn't work.