Playing WiFi with DSi

Is it possible to play games WiFi with flashcards on a DSi in a WPA2 protected WLAN?
The normal web browser and so works perfect, but in games it says "no access point available".
Is the protection the problem?
A DSi should support WPA2, why not in games?Tried with Supercard DSTWO.EDIT: Sorry, please move the topic to Technical Help, I've posted it here cause I wanted to to download the special missions of Pokemon Ranger 3. :-[

because it is not the console that has to support the encryption, it is the game. Nintendo very stupidly made wifi the responsibility of the game software not the console firmware. This is just one of many inexplicable and retarded design decisions they have made with the DS series of handhelds.

Yeah just as I thought, thanks!