Like filmbuff in the Q&A, I installed a Win98 peer to peer network with a hub that was supposed to switch automagically recognizing both 10 and 100 Mbps. I connected two new machines with fast ethernet to two older pentiums with 10Mbps ethernet. The older machines used coax and a combo card. I switched everything to the new and improved RJ45. I upgraded the old machines from Win95 to Win98. The machines could see themselves in network neighborhood, but not each other. I checked everything, cable, device and protocol. Finally, I went to the store and bought a slower $20.00 hub. The network operates but is very very very slow, slower than the Win95 network on coax. It proves however, that the cables and identifications are set correctly. Why is the network so slow?