We've set up Samba as PDC and for some reasons some users can't browse the for the shares anymore! (Worked fine for more than 2 months!) "windows alert: \\KURN\ not available, access denied" Any automatic reconnected net volumes work fine. There's nothing strange in the log file (except "call_nt_transact_ioctl: Currently not implemented" but that was there before) Another strange behavior: When I then log in as an account that can access KURN I can see the homes share of the user that tried before but was not able to connect! Although I cannot connect to this share "Access denied" I don't know what I have changed! Here's my global section: [global] #time server = yes keep alive = 30 log file = /var/log/smbd.log lock directory = /var/lock/samba #syslog only = yes #deadtime = 1 bind interfaces only = yes interfaces = eth0 interfaces = 172.16.1.2/255.255.0.0 allow hosts = 172.16. workgroup = dff security = user #netbios name = PDCSAMBA server string = Linux PDC Samba %v preferred master = yes domain logons = yes guest account = samba #lm announce = no domain master = yes logon path = \\%L\Profiles\%U logon drive = P: ; logon script = login.bat #unix password sync = yes unix realname = yes null passwords = yes map to guest = Bad User encrypt passwords = yes #passwd chat debug = yes # wins server = 192.168.1.1 # wins support = yes printing = bsd printcap name = /etc/printcap.smb