Sounds like the same problem I had with RC2. My NIC module wasn't properly loading, so I "forced" it. Does lspci (or lspcidrake) show that your NICs module is loaded? If not, try loading it with modprobe.
Code:
modprobe <name of your nic driver>
If you get "connected" by doing just that, you need to insert the module name in a file in your /etc directory. As root, fire up your favorite text editor. Nano is on most every Mandrake install, so
Code:
nano -w /etc/modprobe.preload
should open the right file. The comments in there should verify that. Put in the name of your module on one line, by itself and save the file. Next reboot, you should have your NIC loaded as well as the rest of your hardware.
My " Linksys NC100 Network Everywhere Fast Ethernet 10/100 (rev 11)" requires the "tulip" module, so I would enter the name on one line in the /etc/modules.preload file
I hope this is all it is. If not, we'll dig farther.