You need to assign the gaming adaptor a fixed ip address in its management screen, and also I think you need to disable the MAC cloning option (cant remember - try it with enabled also).
Then on your router, make sure that address is excluded from the DHCP range - your console will now get an IP address from the router.
Ie, your router/gateway IP = 192.168.1.1
your gaming adaptor IP = 192.168.1.2
DHCP range on your router = 192.168.1.3->192.168.1.254 (or whatever it is).
HTH
PS if you have the same adaptor as I did (WGA54G or something) this was a pre-G piece of hardware, and I had terrible compatibility issues with my router - it would just drop the connection and I'd have to reconnect to a game. In the end I got a netgear WGE111 which has been flawless to this day.
--
schadenfreude n. the malicious enjoyment of another's
misfortunes
A happy BE*ing
Edited by ste__ (Sat 30-Dec-06 20:57:00)