Okay, I had some trouble with my WiFi router. Namely - I can't connect my DS Lite! I used this tutorial, yet the only thing my DS says is:
Can anyone help me? I know practically nothing about Internet connection and stuff, so if could anyone could me a detailed tutorial, I'd be grateful.Error Code: 5200
Unable to obtain an IP address. Move within range of the access point or check DHCP settings. For help, visit NintendoWIFI.com
NOTE: I'm using Windows XP Professional and a laptop (though I don't know if that matters, because it's connected in the same way my PC is).