Bob,
If you are using a wireless system, that makes me think the signal isn't
being received. If you are hearing other signals in the neighborhood,
however, I wouldn't think that would be the problem. My computer is the
only one working wireless. The other three are so far away, my friend and I
could not get a strong enough signal to use them so we just used hotwire
cable to link the other three computers to the rooter.
Phil.