Hi Jon, I sure hope you can help. I am having the most difficult time trying to network them together via Ethernet. Make sure your network connections are correct. Incedentally, they are both 10 Base T with an RJ-45 jack on both machines. Again, I have gone to Apple's site and scoured it, used the MacOS 8.5 Help and gone through everything step by step many times with the same results.
Ethernet cables are different.
One of the things which a hub does for you is transmit that data back down to the cable with the info on the correct wires. If you don't have a hub, you need a special Ethernet crossover cable which has its wires crossed. They're available pretty cheaply from most catalogs and WWW sites. I am working on a research project at Michigan State University. Our task is to control an electrical system through a web server.