Can not access server by UNC but can by IP - Also cant access it by fully quilified name

When you run nslookup on the problem server what do you see on the first line, is it the name of the primary DNS server or an error?  Try doing some lookups from nslookup and see what you get.  What exactly do you see when you try to ping the servers?  If you could copy and paste the outputs it would be great.  Also install the Windows support tools on the server and run netdiag, again post the results.

Have you got up-to-date antivirus on this problem server?  There are a couple of viruses out there that have similar effects to that, though they would tend to block IP access as well.  Worth checking though.

From a command prompt review ipconfig /all (TCP/IP settings)
And nslookup badservername

Also try ping -a other server

have you checked your hosts file?.....

is the problem server a windows 2003 server as well?

Microsoft Windows 2000 [Version 5.00.2195]
(C) Copyright 1985-2000 Microsoft Corp.

C:\Documents and Settings\Administrator>nslookup hal
*** Can't find server name for address 10.147.3.3: Non-existent domain
*** Default servers are not available
Server:  UnKnown
Address:  10.147.3.3

Name:    hal.alz147.local
Address:  10.147.3.2


C:\Documents and Settings\Administrator>nslookup 10.147.3.3
*** Can't find server name for address 10.147.3.3: Non-existent domain
*** Default servers are not available
Server:  UnKnown
Address:  10.147.3.3

*** UnKnown can't find 10.147.3.3: Non-existent domain


ok i did a nslookup on the other two servers... the top is just a file server and the bottom paste is the DC

Microsoft Windows 2000 [Version 5.00.2195]
(C) Copyright 1985-2000 Microsoft Corp.

C:\Documents and Settings\Administrator>nslookup hal
*** Can't find server name for address 10.147.3.3: Non-existent domain
*** Default servers are not available
Server:  UnKnown
Address:  10.147.3.3

Name:    hal.alz147.local
Address:  10.147.3.2


C:\Documents and Settings\Administrator>nslookup 10.147.3.3
*** Can't find server name for address 10.147.3.3: Non-existent domain
*** Default servers are not available
Server:  UnKnown
Address:  10.147.3.3

*** UnKnown can't find 10.147.3.3: Non-existent domain

C:\Documents and Settings\Administrator>

Microsoft Windows 2000 [Version 5.00.2195]
(C) Copyright 1985-2000 Microsoft Corp.

C:\Documents and Settings\Administrator>nslookup hal
*** Can't find server name for address 10.147.3.3: Non-existent domain
*** Default servers are not available
Server:  UnKnown
Address:  10.147.3.3

Name:    hal.alz147.local
Address:  10.147.3.2
here is screen shot of ping -a on from the problem server to the DC   -- thanks everyone for the help  
 


C:\Documents and Settings\Administrator>nslookup 10.147.3.3
*** Can't find server name for address 10.147.3.3: Non-existent domain
*** Default servers are not available
Server:  UnKnown
Address:  10.147.3.3

*** UnKnown can't find 10.147.3.3: Non-existent domain

C:\Documents and Settings\Administrator>

problem server is a 2kserver.. sorry i didn't post that earlier..

HOST file is just a generic  host file.. but wanted to give all info that will help resolve issue..
#      102.54.94.97     rhino.acme.com          # source server
#       38.25.63.10     x.acme.com              # x client host

127.0.0.1       localhost

when i do a ping -a from the file server(not problem server) (not dc server) it resolves just fine no errors at all... hmmm...

can you post your ip config for all 3 servers?

and annotate which server(s) is running DNS server service...thanks!

check whether the DNS record of the servers correct or not...

any service was stopped recently?

the resolution was that both DC were trying to be the master and it was causing the issue. i removed one from being the master and that corrected the issue.. thanks for everyones input