5th Gen Wi-fi connection

Hi to everyone here in PC.I was using pokemon white with a DSi XL to connect in a WPA2 Router.As i saw in the Frequently questions Hiroshi satomura said that Pokemon White can connect with WPA2.SO what's going wrong?

I guess you should ask this in the Simple Questions thread.

I've not played White but if it works in the way DSi connections usually work then you need to make sure your XL already is set up to that router by going into:
->Settings
->Internet
->Connection Settings
-> Advanced setup *the important part*
-> set up the connection on slot 4, 5 or 6

Once the XL is set up and can connect on its own then the game should be able to connect through that connection when you try to use a Wi-Fi function.

If it's something different then I'm afraid I don't know.