I have a router, but I do not know how to set it up to allow Wi-Fi battles. I once called Nintendo about it, but they said it'd require me to reset passwords for my router and others things, is this true? I have a free Netgear router from Comcast [ Netgear WNR1000v2 ], if you're wondering.

Netgear routers are kind of tricky. First of all, DSes can only do certain kinds of security. If you can, you should try to change it to a WEP password. I know the Netgear I used to have was set up only to let devices in which the MAC code of the device is within the router information. Perhaps if you can figure out how to do that, you may be in luck.

There is an local address for your router. It varies by model, but most likely you'll need a password to get in. This allows you to set pretty much everything including passwords and what not. DS'es only take open (unsecured) and WEP Key security. First, try opening a Wi-Fi compatible game, opening up the settings (in this case it would be on the main menu and you can't possibly miss it) pick any of the slots and tap "Search for Access Point." There would be a unlock icon if your router is open. In that case, you should be good to go.

Alternatively, I would ask the person that set it up if I were you. Netgear routers are really tricky as well.

@Ditto616: I see what you mean. Do you know what website you go to change it to WEP? I looked for the site on Google, but whatever websites I went to, my browsers wouldn't open it.

@AshArmy: I don't know who set it up, it was a Comcast cable guy who came in to also fix my cable box.

You actually have to go into your router's settings. I believe you can do that by typing your IP address into the address bar. I'm not sure how else you can do it.

I see. Sorry for bugging you, but do you know how I can find my IP?

Your default IP is 192.168.1.1 on almost every home network. If you have a DSi and you only want to play online with Pokémon Black or White, then having WPA doesn't matter, since those games support it when being used on a DSi (Earlier Pokémon games don't support WPA).