I wonder about your settings and distance. Tell more and always set it up "our way" per the forum note to save us a few steps.
I have a Netgear wgt624 v3 wireless router and it does not work with a Nintenf\do Wii. Sometimes it will connect for a little bit but then it drops the connection. Even when the Wii is not finding the internet, the router shows the Wii's MAC address as an attached device. The Netgear wgt624 v3 is set up as an access point and changing the channel on it sometimes works... for a little bit. Thanks for advice!