Hello! I tried to get some help from the IRC before, but the problem seems to be too complicated to discuss it there. PLEASE, be so kind and help me solving this problem, I stuck and I must get this working as quick as possible. Here an overview and some details: In one well protected LAN (so I have no need to encrypt passwords at all, which simplifies user management on servers in turn because I do not have to add users twice (once to Linux, once to samba) I have two SAMBA servers. .) The old one is running on SuSE 6.4 and is version 2.0.6. To this server, all current windows clients (NT4, Win2000, WinXP) can connect, and everything works fine. .) The new server is running Samba 3.0.7-5.2-SUSE on SuSE 9.2. To this server, only Win2000 and WinXP, but not NT4 can connect. .) The old server can use 'smbmount' to mount the new server with samba, which was done with several usernames for testing, so it must configured theoretically well. So the bis question is: Why can't Win-NT4 connect to the new server? Below I appended the important parts of both smb.conf files and a little snippet of /var/log/samba/log.smb. If somebody can help, please. Thanks, Rainer Old server's smb.conf, the server who is working well: ---<snip>--------------------- [global] workgroup = satz guest account = nobody keep alive = 30 os level = 96 kernel oplocks = false security = user encrypt passwords = no printing = bsd printcap name = /etc/printcap load printers = yes socket options = TCP_NODELAY map to guest = Bad User interfaces = 10.0.0.2/255.0.0.0 wins support = no [WinWork] comment = Windows-Daten directory = /userdata/WinWork browseable = yes read only = no locking = yes force create mode = 0777 force directory mode = 0666 ... ... ---<snap>--------------------- New server's smb.conf: This server can only be mounted from smbmount, Win2k and WinXP ---<snip>--------------------- [global] log level = 3 passdb:5 auth:10 workgroup = SATZ encrypt passwords = no printing = cups printcap name = cups printcap cache time = 750 cups options = raw printer admin = @ntadmin, root, administrator username map = /etc/samba/smbusers map to guest = Bad User include = /etc/samba/dhcp.conf # logon path = \\%L\profiles\.msprofile # logon home = \\%L\%U\.9xprofile # logon drive = P: # Here I tried forcing some settings (no difference) security = user acl compatibility = Auto [applework] comment = Apple Working Dir path = /userdata/work browseable = yes read only = no directory mask = 0777 create mask = 0666 force directory mode = 0777 force create mode = 0666 ... ... ---<snap>--------------------- A short snippet of the samba-logfile. User "wewerka" is existing and has a valid password, though she cannot log in to the new server. I wonder about username "Standard". As you can see, User "roza" can login. ---<snip>------------------------------- [2004/12/13 13:31:02, 1] smbd/service.c:make_connection_snum(648) 10.0.0.77 (10.0.0.77) connect to service applework initially as user roza (u id=505, gid=100) (pid 1258) [2004/12/13 13:31:02, 1] smbd/service.c:close_cnum(837) 10.0.0.77 (10.0.0.77) closed connection to service applework [2004/12/13 13:31:02, 1] smbd/service.c:make_connection_snum(648) 10.0.0.77 (10.0.0.77) connect to service applework initially as user roza (u id=505, gid=100) (pid 1258) [2004/12/13 13:31:02, 1] smbd/service.c:close_cnum(837) 10.0.0.77 (10.0.0.77) closed connection to service applework [2004/12/13 16:32:27, 0] auth/pampass.c:smb_pam_passcheck(810) smb_pam_passcheck: PAM: smb_pam_auth failed - Rejecting User Standard ! [2004/12/13 16:32:31, 0] smbd/service.c:make_connection(800) 10.0.0.31 (10.0.0.31) couldn't find service . [2004/12/13 13:31:02, 1] smbd/service.c:close_cnum(837) 10.0.0.77 (10.0.0.77) closed connection to service applework [2004/12/13 16:32:27, 0] auth/pampass.c:smb_pam_passcheck(810) smb_pam_passcheck: PAM: smb_pam_auth failed - Rejecting User Standard ! [2004/12/13 16:32:31, 0] smbd/service.c:make_connection(800) 10.0.0.31 (10.0.0.31) couldn't find service . [2004/12/13 16:32:40, 0] auth/pampass.c:smb_pam_passcheck(810) smb_pam_passcheck: PAM: smb_pam_auth failed - Rejecting User Standard ! [2004/12/13 16:32:40, 0] auth/pampass.c:smb_pam_passcheck(810) smb_pam_passcheck: PAM: smb_pam_auth failed - Rejecting User Standard ! [2004/12/13 16:33:10, 0] auth/pampass.c:smb_pam_passcheck(810) smb_pam_passcheck: PAM: smb_pam_auth failed - Rejecting User wewerka ! [2004/12/13 16:33:32, 0] auth/pampass.c:smb_pam_passcheck(810) smb_pam_passcheck: PAM: smb_pam_auth failed - Rejecting User wewerka ! [2004/12/13 16:33:56, 0] auth/pampass.c:smb_pam_passcheck(810) smb_pam_passcheck: PAM: smb_pam_auth failed - Rejecting User wewerka ! ---<snap>---------------------------