wow, lol @ this thread X 20. ICS dishes out IPs when its enabled... but something got fubared so his other machines arent getting IPs (as evidenced by one of his old posts with the 169.x.x.x autoconfig addy). But now hes got them configured manually, so that point is moot (until he wants to get online via the network thru ICS) Soooooo we're down to basic TCP/IP troubleshooting here. Apparently Cables are fine (hes getting link lights), so Layer 1 not the problem. Layer 2... yeah, no problem with macs, so onto layer 3 - IP!!!! w00t.
If computer A with a ip of 192.168.0.1 and computer B with a ip of 192.168.0.2 both with subnet mask 255.255.255.0 are hooked together in a NORMAL hub/switch/whatever, will be able to PING each other. But since we havent seen ipconfig /all's of the two machines we really cant do anything yet, can we. I liked the idea that someone had earlier since hes getting these hubs from work that theres some fscked up VLAN or something, but the OP said he put the old hub back and still not working. So, once we get IP information from his computers we can move from there