I reinstalled Windows XP Home Service Pack 2 on my mom's Dell Inspiron 1501 and now I am having trouble with the internet.

I can connect to an unsecure connection in my neighborhood with it, but for some reason I'm having trouble with OUR wireless. The other 2 laptops in the house can connect to it fine. But when the 1501 connects, it says "Limited or No Connectivity".

I have tried using the wireless utility's repair option but it says "Windows could not finish repairing the problem because the following action could not be completed: Renewing your IP Address", and I also tried running Winsock XP Fix as I saw suggested in other threads, but this did not work either.