Hi.I had the same issue, which is probably rooted in runnig samba as an ad dc and a file server at the same time.
The result was that smbd and nmbd did not start any more while samba-ad-dc and samba were inactive.
Setting server role check:inhibit=yes in the smb.conf [global] section fixed iit. Sincerely, Joachim -- Papier ist gebundenes CO2. Bitte drucken Sie diese EMail aus und archivieren Sie sie.