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Servers can't see each other

bunker

Lifer
4 windows 2000 servers.

Same workgroup, same subnet.

Machines were able to see each other fine when they were built.

Two were moved to a hosting center (servers A/B), the others (servers C/D) stayed in my server room.

Now, I can only access servers A/B by IP or the fully qualified DNS name, in other words, I can't see them in network neighborhood and all my mapped drives are dead. There are no firewalls in between me and the hosting center. Servers A/B can see each other fine in the hosting center, servers C/D can see each other fine in my server room.

Want to re-state, these servers are in a workgroup, not a domain as they are in the DMZ.

What should I be looking for??
 
WINS or probably even a quicker solution is just edit the hosts files. Assumably since these are servers they have static IP's. Should if they don't and if they do and no foreseeable changes then just resolve names via hosts.
 
Can you map the network drives using the IP of the servers? If that doesn't work, I'd look at any possible firewall blockage on either end.

WINS is another good thing to look into.
 
I can access them fine if I put an entry in the hosts file (IP's are static), but I'm just curious to know why I can't browse them through network neighborhood any longer.

In case you hadn't noticed I'm not a full time sysadmin. 😉 More of a dba that got drafted into sys administration.
 
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