I just can't believe. I had a Wii year ago and played MKWii online a lot Never had any problem. Then i sold my Wii and got a 3DS XL with Mario Kart 7. Tried online but its IMPOSSIBLE. Communication error,Communication error and Communication error. Its even impossible to play 1 race so i thought something is wrong at my home like modem or something like that. Today i borrowed friends Wii and tried MKWii again and it runs flawless. No lags,no disconnections, nothing. After trying many things like DMZ,Port forwarding changing modem securities, everything fails. So in the end 3DS Wifi connection sucks.. right?