I work as an IT admin in a small company.

We recently moved many of our XP machines from an NT4.0 domain to a Windows 2003 domain(DomainA). The problem is that now when you click Entire Network none of the computers in the network show up. We didn't have this problem when all computers were part of the NT4.0 domain. The NT server is still running, but it hosts a different domain (DomainB)

I've examined the packets going across the wire, and the computers are broadcasting NetBIOS names, DNS & DHCP is configured on the 2003 Domain Controller. I'm running out of ideas. Can anyone help me?

If I'm reading your notes correctly, your computers are currently joined to the old domain. IF this is the case, they won't be listed under the new domain, as their listing will be controlled by the local browse master.

Two things you can do...

1. Leave the old domain and rejoin each computer to the new domain.

2. Establish a trust between the two domains and allow mutual browsing in the settings

Did you actually add these computers to the XP domain? I doubt that giving your 20003 server the same domain name as the old NT4 server would work...

Two thoughts. First, have your run "ipconfig /flushdns" and "nbtstat -R" to flush your cache? If your computers are still holding the old domain information for your hardware, the new configuration won't show up, sometime for days, until your cache clears.

Second, do you have a subnetting/routing issue? If the computers are on a different subnet or behind an internal router you could exhibit this issue.