... Every few minutes, nmbd logs the following in /var/log/messages: Apr 27 13:38:20 16test nmbd[2551]: [2010/04/27 13:38:20, 0] nmbd/nmbd_become_dmb.c:337(become_domain_master_browser_wins) Apr 27 13:38:20 16test nmbd[2551]: become_domain_master_browser_wins: Apr 27 13:38:20 16test nmbd[2551]: Attempting to become domain master browser on workgroup WORKGROUP, subnet UNICAST_SUBNET. Apr 27 13:38:20 16test nmbd[2551]: [2010/04/27 13:38:20, 0] nmbd/nmbd_become_dmb.c:351(become_domain_master_browser_wins) Apr 27 13:38:20 16test nmbd[2551]: become_domain_master_browser_wins: querying WINS server from IP 10.32.1.200 for domain master browser name WORKGROUP<1b> on workgroup WORKGROUP Apr 27 13:38:21 16test nmbd[2551]: [2010/04/27 13:38:21, 0] nmbd/nmbd_become_dmb.c:235(become_domain_master_query_success) Apr 27 13:38:21 16test nmbd[2551]: become_domain_master_query_success: Apr 27 13:38:21 16test nmbd[2551]: There is already a domain master browser at IP 10.32.1.201 for workgroup WORKGROUP registered on subnet UNICAST_SUBNET. Shut down Samba, delete wins.dat, and restart Samba. Messages disappear. Moray. "To err is human.=A0 To purr, feline"