Situation
Probably after an Upgrade, Samba won’t start.
root@ucs:~# samba-tool processes
Service: PID
--------------------------------------
root@ucs:~#
In the /var/log/samba/log.smb you might find a line saying 127.0.0.1:46 already in use or similar.
Despite the package samba4wins is not installed you might find a service called the same.
Solution
Stop the service called samba4wins and disable it.
root@ucs:~# systemctl stop samba4wins.service
root@ucs:~# systemctl disable samba4wins.service
Now you are able to start Samba without problems
root@ucs:~# /etc/init.d/samba start