Gender: Unspecified Location: With Cinderella and the 9 Dwarves
An IP address is made out of four separate numbers. 0000 is not an IP address, I'd say.
One thing you could do is get a LAN Cable and connect it to your Router or Modem, which would bypass the Wireless Device and should usually, get you into the net, at least for a quick fix, so your brother can pass his classes.
Maybe you need to click on automatically assign IP Address either, on the whole, your information is really too little to help sufficiently. Your type of Internet connection and a better description of the problem are pretty much requisites.