I recently got comcast as my ISP, and was able to connect
to the internet without any problems (all I had to do was plug
the ethernet cable into the computer and reboot the computer
and I was on my way, on all 3 distros). I have 2 computers, 1 at
home (pent III, 40 gig hd, 375.7 mb ram, FC6, FC8 and Ubuntu 7)
the other at work (amd, 1 gig ram, 80 gig hd, FC8).
I took my work computer home to get online (way faster processor and use it
only for a few days) but could not get online. I tried using
system-config-network to manually set things like IP address,
DNS addresses, search domain etc. copied over from
my home computer.
I can get a connection sometimes but I can't get web pages.