I have 4 pc's running on a lan that's sharing an Earthlink DSL connection. One pc doesn't seem to work. It works briefly sometimes when I change or move the cable. The pc is a Dell Dimension 4600. I opened the box to reseat the nic, but it's fused into the motherboard. I tried to release/renew the ip, but it timed out.....couldn't contact dhcp. If any additional info needed please ask. I don't know what else to provide.