OK, I've read BROWSING.txt and NetBIOS.txt and I've been following the list for almost a year. Browsing only half works and I'm using 1.9.17p3. Our network has many subnets but I'm concerned with only three. Indeed, it looks a lot like the example in browsing.txt. Subnet A has the samba server (domain master for Workgroup W and local master for subnet A) and several NT workstations all on Workgroup W. Subnet B has several NT workstations on Workgroup W. Subnet C has the WINS server, which is also the PDC for a huge domain that I'm not part of. The browse lists for subnet B are OK: they contain everyone from W on subnets A and B. However, subnet A only sees workstations from subnet A and the browse list for the samba server (on A) contains only the subnet A NT boxes, and other workgroup masters also on A. If I use tcpdump or netcat I can see lots of communication on subnet A to the WINS server on port 137. I also see that every 12 minutes the local master of B sends a packet to samba on A on port 138, which must be the browse list sync for subnet B. BUT, I never see the synchronization request sent back from samba on A to the local master on B. Other misc. info: 1) everyone has the same subnet mask and correct WINS server address. 2) no one is using lmhosts 3) log.nmb shows correct elections on subnet A and an initial query for domain master to WINS 4) testparm says everything is ok 5) all tests passed in DIAGNOSIS.txt 6) we use a "0" based broadcast (XXX.YYY.ZZZ.0) 7) here is the relevant smb.conf: workgroup = W domain master = yes local master = yes preferred master = yes os level = 40 wins server = XXX.XXX.YYY.YYZ wins proxy = yes password level = 3 I'd sure like to get this working. I'm sure I'm doing something dumb so I've been reluctant to post to this list. Sorry for the barf. Thanks for any suggestions. Beau Atwater -- Beau Atwater beau@bwa.bellcore.com Bell Communications Research (732) 758-3373