So i have my DSTT and its running well and everything is happy till I try wi-fi with some games, and some games i really want to play online such as (Mario Kart DS and Tetris DS) but whenever i load up the wi-fi connection they cannot connect even though other games connect without any problem. I've tried going to the wi-fi settings and setting up a new connection but then it says it cant connect to it. can someone help me out?