WINS

SME 8.1 is configured to be WINS

..but nmdb log shows

2015-07-15 19:38:11.384421500 Samba name server PDC-AIB is now a local master browser for workgroup AIB on subnet 192.168.9.200
2015-07-15 19:38:11.384440500
2015-07-15 19:38:11.384457500 *****
2015-07-15 19:38:11.384625500 find_domain_master_name_query_fail:
2015-07-15 19:38:11.384671500 Unable to find the Domain Master Browser name AIB<1b> for the workgroup AIB.
2015-07-15 19:38:11.384697500 Unable to sync browse lists in this workgroup.
2015-07-15 19:53:19.397854500 find_domain_master_name_query_fail:
2015-07-15 19:53:19.397897500 Unable to find the Domain Master Browser name AIB<1b> for the workgroup AIB.
2015-07-15 19:53:19.397960500 Unable to sync browse lists in this workgroup.
2015-07-15 20:08:26.730047500 find_domain_master_name_query_fail:

local master = yes
preferred master = yes
oslevel=96

ServerRole=WS

what can be the problem ?

best regards
sti