Topic: Internet Help

For some reason my DSi cannot connect to the internet. Well, only on some games. For example, my Mario Kart DS game has no trouble connecting to the internet, however my Pokemon Platinum and Advance Wars: Days of Ruin will not connect. I can also connect to the internet to go on Flipnote and the DSiWare shop. Please help me, I want to battle someone online in my Advance Wars game. I have no idea what is wrong.

Are you using WEP or WPA encryption for your wireless network?

Also, if you're getting an error code, you probably want to look that up in the manual or online to see what the cause is.