If workstations with duplicate names exist in a domain prior to WINS configuration, you can use the workstation check script /opt/novell/xad/share/dcinit/checkdupws.pl to identify workstations with duplicate names and take appropriate action.
Run the following command:
checkdupws.pl --history
Ensure that you have unique workstation names.
Run the following command:
checkdupws.pl --clear-cache
This will clear the duplicate workstation name cache.