I've got a Samba 3.0.4 server running on RedHat 8.0 as a PDC. It's the only domain controller on the network, and the only WINS server on the network. The problem is, when I browse the network neighborhood, I see the NetBIOS name of the server ("SERVER") appear as a workgroup/domain (though there are no hosts listed in this phantom domain). It also appears as a computer under the AEC domain. All computers on the network are either in the workgroup AEC or domain members of AEC. When I attempt to use User Manager for Domains (usrmgr.exe, from SRVTOOLS) from a Win2K or XP client, I am first presented with the error message, "Could not find domain controller for this domain. Would you like to select another domain to administer?" I suspect it is first trying to connect to a DC on the phantom domain, SERVER. In the "Select Domain" dialog box, both AEC and SERVER appear as domains. I have been having some problems that come and go that seem to be related to browsing, domain group SIDs, and so forth. I suspect that whatever is causing the netbios hostname appear as a domain may be the root cause. I suspect it's a domain browsing / nmbd / WINS issue, but I'm stumped as to where the problem lies. I've tried clearing the NetBIOS cache (using nbtstat -R) then restarting the workstation to no effect. The wins.dat database looks normal to me. Below is the global section of smb.conf: [global] workgroup = AEC netbios name = SERVER server string = PowerWave Server PDC update encrypted = Yes null passwords = Yes obey pam restrictions = Yes passdb backend = tdbsam pam password change = Yes passwd program = /usr/bin/passwd %u passwd chat = *New*password* %n\n *Retype*new*password* %n\n *passwd:*all*authentication* unix password sync = Yes log file = /var/log/samba/%m.log max log size = 0 socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192 add user script = /usr/sbin/useradd '%u' delete user script = /usr/sbin/userdel '%u' add group script = /etc/samba/bin/smbgroupadd '%g' delete group script = /etc/samba/bin/smbgroupdel '%g' add user to group script = /usr/bin/gpasswd -a '%u' '%g' delete user from group script = /usr/bin/gpasswd -d '%u' '%g' set primary group script = /usr/sbin/usermod -g '%g' '%u' add machine script = /usr/sbin/adduser -n -g machines -c Machine -s /bin/false -M '%u' logon path domain logons = Yes os level = 65 preferred master = Yes domain master = Yes dns proxy = No wins support = Yes ldap ssl = no add share command = /usr/sbin/modify_samba_config.pl change share command = /usr/sbin/modify_samba_config.pl delete share command = /usr/sbin/modify_samba_config.pl printing = lprng print command = lpr -r -P'%p' %s lpq command = lpq -P'%p' lprm command = lprm -P'%p' %j lppause command = lpc hold '%p' %j lpresume command = lpc release '%p' %j queuepause command = lpc stop '%p' queueresume command = lpc start '%p' --Jon Johnson Sutinen Consulting, Inc. jon@sutinen.com (360) 270-9317 cell