[Samba] Mac Machines taking over Master Browser

[JJB]

For some reason the Macintosh machines on our LAN have started taking 
over as master browser without actually providing. Mostly these are 
Leopard machines, and one Tiger machine. We had OS Level set to 255 and 
that does not seem to make a difference.

[2008/01/16 11:14:27, 0] 
nmbd/nmbd_browsesync.c:get_domain_master_name_node_status_fail(486)
get_domain_master_name_node_status_fail:
Doing a node status request to the domain master browser at IP 
192.168.1.153 failed.
Cannot get workgroup name.


192.168.1.153 is an iMac running leopard. We are running a samba file 
server that should be responding as our master browser and was until the 
new machines came on the LAN.

 - Joel