First ill explain my setup. I have a PS3 upstairs. I also have a computer a modem and a router upstairs. Unfortanutly (is that how its spelled) the modem and router are old and from my old house which had a different ISP. The Internet upstairs wont work because my ISP wont let me get on the internet. That rules out connected internet.

Now to downstairs. I have a modem and a router which let me get online. And a computer that im typing with. So I am trying to get my wireless internet set up but it wont let me get my IP. And Im sure its getting the signal it is displaying at 100% signal strength. Please help me. If you need further info I can give it to you.