Thanks for replying. They are all connected wirelessly, to the same Centurylink Q2000 router/modem. The problem computer is actually one of the Windows 7 pro computers, strangely enough. Pinging the problem computer from any of the others returns a result of "Desination host unreachable" when...
I have 4 computers on my home network, 3 of which are running Windows 7 pro, and the other one is Windows Vista home. All of the computers are in the same workgroup (I tried using homegroup as well, but it worked terribly and I disabled it), all of them have the same network settings (file and...