Hi!

Trying to share a directory with NFS works fine, then another time as CIFS fails with error:
session setup failed: NT_STATUS_LOGON_FAILURE

Users exist in /etc/passwd and /etc/samba/samba-passwd

Code:
 smbclient -L //bigmama12 -N -W WORKGROUP
Anonymous login successful
Domain=[WORKGROUP] OS=[Windows 6.1] Server=[Samba 4.2.4-11.1-3616-SUSE-SLE_12-x86_64]

        Sharename       Type      Comment
        ---------       ----      -------
        sapmnt          Disk      TRANSDIR
        data            Disk      Common information
        IPC$            IPC       IPC Service (Samba 4.2.4-11.1-3616-SUSE-SLE_12-x86_64)
Anonymous login successful
Domain=[WORKGROUP] OS=[Windows 6.1] Server=[Samba 4.2.4-11.1-3616-SUSE-SLE_12-x86_64]

        Server               Comment
        ---------            -------
        BIGMA50P
        BIGMAMA12             Samba 4.2.4-11.1-3616-SUSE-SLE_12-x86_64
        NASF886E3            NAS Server

        Workgroup            Master
        ---------            -------
        WORKGROUP            BIGMAMA12
I wonder where I got 3 servers from...

Anyway listing is fine so far beside that anomaly.

smbclient -L //desap60f -U ralf
Enter ralf's password:
session setup failed: NT_STATUS_LOGON_FAILURE

Checked password for OS and samba, re-entered password to make sure it matches.

Same result: session setup failed: NT_STATUS_LOGON_FAILURE

Did I miss something?
Code:
 testparm
Load smb config files from /etc/samba/smb.conf
rlimit_max: increasing rlimit_max (1024) to minimum Windows limit (16384)
Processing section "[sapmnt]"
Processing section "[data]"
Loaded services file OK.
Server role: ROLE_STANDALONE

Press enter to see a dump of your service definitions

# Global parameters
[global]
        security = USER
        passdb backend = smbpasswd:samba-passwd
        add machine script = /usr/sbin/useradd -c Machine -d /var/lib/nobody -s /bin/false %m$
        domain master = No
        wins support = Yes
        idmap config * : backend = tdb


[sapmnt]
        comment = TRANSDIR
        path = /data/transdir
        read only = No
        inherit acls = Yes


[data]
        comment = Common information
        path = /data
        valid users = ralf
        read only = No
        inherit acls = Yes