Event ID: 4321

I am getting this error in the event logs. I have done a
clean install of this server a couple times and have even
changed the name of the server, I do not know why I am
getting this message. I have 2 nics one is disabled. We
use unix as a DNS server... any ideas??? THANKS!

-------Start of event log--------------
Event Type: Error
Event Source: NetBT
Event Category: None
Event ID: 4321
Date: 2/4/2004
Time: 9:52:36 AM
User: N/A
Computer: EXCHANGE
Description:
The name "GSFC :1d" could not be registered on
the Interface with IP address 172.21.13.5. The machine
with the IP address 172.21.13.3 did not allow the name to
be claimed by this machine.

For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 00 00 00 00 04 00 56 00 ......V.
0008: 00 00 00 00 e1 10 00 c0 ....á..À
0010: 01 01 00 00 01 00 00 c0 .......À
0018: 00 00 00 00 00 00 00 00 ........
0020: 00 00 00 00 00 00 00 00 ........
-----------End of event log-------------