Wireless is built in...although I think there is a usb ethernet adapter...but you should check the threads in the Wii Online section of this forum to find your answer.
i need help on how to connect to the online version of multiplayer on wii. can you use a regular ethernet cable or do u need a wireless connection?? that is if it alreaddy exists...
there are no online multiplayer games yet
Not another one -.-'
Search the Forums. Seriously you might be new you might not be new but c'mon even the Nintendo website can help you with this
No Longer Have A Wii
do you guys know if cod3 is going to be somehow updated to be able to play online next yr? that would make the game way better...