I've been working on this for a week now and still no luck. I'm using a Compaq LTE Elite 4/40CX Laptop (old school :) with a Xircom CE3-10/100 Ethernet card. I've been trying everything I can to get it working because my laptop has no cdrom, and I can't upgrade to RedHat 6.1 from 5.0 without doing it between the laptop and my desktop. Using a PCMCIA boot disk failed to work, the lights on the PCMCIA to RJ45 connector were on and flashing, but the HUB lights wern't, and no communcication was making it to my other machines. I decided that I would try to locate the problem by attempting to network the laptop with 5.0 on it to my other machines. I've overcome most obsticles involving memory problems (resulting in reboots on card insertion), and some other issue where I got a high beep low beep pattern on card insertion. Now it all seems ok, the card goes in, there are 2 high tone beeps, the network.opts file is run, and eth0 appears (when checked with ifconfig) and it has the correct gateway, ip, and netmask all set up. I'm not sure what broadcast is so i set it to the value my other boxes use. Since I'm using Redhat 5.0, I don't have any fancy tools like linuxconf to do it all for me, and hence im not 100% (altho I am 99%), sure that I've performed all the necessary tasks to set up a network manually. Everything seems to be perfect. When I ping another box however, the converter lights flash again, and theres no response on the HUB, and it silently fails. Just like the boot disk. Any ideas? Thanks.