Wifi connection problem?

[Yomi-no-Kuni]

Allright, i think this is a general brawl-wifi problem.

So, i can play wifi with several people and already have done so, but with some, it just won't connect.
The other person can play with others, just not when i'm in the room or directly with me.
I have NO idea what could cause it, has anyone experienced something like this, or should i just give up? XD

I have installed the correct Wifi safe built for 2.5b, and so does he.

 

[MonkUnit]

The Brawl wifi in general is currently down right now and should probably be fixed and working sometime later today.

 

[Yomi-no-Kuni]

well, sadly that wasn't the problem either