I want to play Mario Kart 7 simply in my house with my 2 friends. I have Wi-Fi Connection and i tried both forms of multiplayer and i still can't race against my 2 friends. How do i set up a multiplayer where at least 3 players in the same house can race against each other in Mario Kart 7? Tell me all the details and specifics, especially if it includes having to change your Wi-Fi Security settings to WPA. Please and thank you.