Event Error NetBT 4321

Hi,

I am getting the following error messages on my domain controller. 

Error: NetBT 4321

The name "domainname        :1d" could not be registered on the Interface with IP address 172.16.10.1. The machine with the IP address 172.16.10.2 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.

How can i resolve this issue.

Thanks

Faisal Farooq