I have a DSL/Cable router that I use for my network, with 3 computers hooked up constantly. I keep one cable vacante for when I work on a computer. Win 2000 on the main computer, win98se on all the rest. I'm working on a unit now that I had previously hooked to the network. The owner brought me a larger used HD to install. Now I'm trying to get it back on the network so that I can do the win update thing. All computers see the 4th computer, but the 4th computer doesn't see anyone else!

Anybody know what I missed. I can't figure this out, have had dozens of computers hooked up this way, with this same network card. Could it be the card? But why would all the rest see the computer?

Any seggestions!!!