Missing active workstations in listing

You may some of this but here goes...

Protocol must be the same on all workstations.
All workstations must have microsoft client in the network components box.
All workstations MUST be a member of the same workgroup AND I recommend no space in the workgroup name.

Furthermore, reduce the number of protocols to one if possible.

Learn the net commands from the DOS prompt. Start with net /? at the c:. Useful commands are net view \\computername where computername is replaced with the workstation name. Hope this helps.

Win 9x frequently has browsing problems when it does not have the benefit of WINs or DNS. If your network includes computers that are frequently powered off, it is a good idea to disable browse server duties on these computers. I would recommend only enabling browser capability on those PCs that are most often up and running on the network.

To disable browse server duties on a Windows 9x-based computer:
1. Use the right mouse button to click Network Neighborhood, and then click Properties on the menu that appears.
2. On the Configuration tab, click the File And Printer Sharing For Microsoft Networks component, and then click Properties.
3. In the Property box, click Browse Master, and then click Disabled in the Value box.
4. Click OK.

At least one computer in each workgroup must have the ability to become the master browse server. If browse server capability is disabled on all the computers in a network, browse functionality is disabled. A network storm will ensue as clients will be unable to locate the browse master and will force an election.