\\Server name is not accessible error from explorer on a native 2000/2003 network

I have a native windows 2000/2003 network spread over 3 locations connected by dedicated T1 lines using Cisco routers. I recently installed a new server named OCPRO in one of my remote offices and it is up and running fine. It is a SQL server with a fixed IP address and the office is on it's own subnet. When I try to access it from another office I receive the error message"\\ocpro is not accessible The network path was not found.

I can access the server sitting physically next to it with no problen and I have printed and compared the configs and they are identical, except for address of course. I can ping the server from all locations using the IP address and if I ping to the server name it resolves fine but does not ping. If I manually map to a share from explorer I can access that share and subfolders as well.

I have checked DNS and it is referenced correctly in the tables and if I log into the "OCPRO" server I can see out to the rest of the office fine. This same thing is also happening with another server in another office.

Thanks
KimButlerAsked:
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adamdrayerConnect With a Mentor Commented:
Are you running WINS?  compare the NetBIOS over TCP/IP settings in the advanced portion of your network properties.  Then run IPCONFIG /ALL on the OCPRO and the machine next to it and compare the "Node Type"
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Tim HolmanConnect With a Mentor Commented:
Just make sure all servers are running WINS and can see the central WINS server.
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