Try posting under the correct subject rather than Windows 7.
It might get you a few more responses.
You need to give a little more information than that....
It might be you need to connect your Xbox (or is it a?) 360 to the router then reboot the router & the modem so that an IP address can be assigned.
Another reason might be that MS no longer supports the original Xbox.
my name is billy and my xbox wont connectit keeps on saying theres a problem with your connection