Nintendo DS Wifi... Players always disconnect

I have a wireless router which connects to Nintendo wifi fine and can find opponents ok but no matter what game i play as soon as the game gets round to starting, the opposing player leaves/disconnects.

Does anyone know why this would happen? i've tried 3 different games and they all do the same but the ds says the wifi connection is fine and i have no problem connecting to the nintendo network or finding players.

They CAN'T prevent their points getting loss thoughThunderball37

These people are really the least smartest out of everyone on earth.

I know they don't care about the 30 point loss but the LINK face will drop all the way down to skull and crossbones. Signaling the player not to play him because of the disconnecting they keep doing. They can lose their rank shooting them down to COMPLETE loser.

Why can't they do that to all the games to help us know who we're playing? That'll be use ful.