Hello,
I find many Warnings in the daemon.log like this :
Feb 17 13:50:44 openmv dhclient: DHCPREQUEST on eth0 to 192.168.1.1 port 67
Feb 17 13:50:44 openmv dhclient: DHCPACK from 192.168.1.1
Feb 17 13:50:45 openmv systemd[1]: Reloading LSB: start Samba SMB/CIFS daemon (smbd).
Feb 17 13:50:45 openmv smbd[21336]: [2017/02/17 13:50:45.034845, 1] ../source3/smbd/server.c:1039(smbd_parent_sig_hup_handler)
Feb 17 13:50:45 openmv smbd[21336]: parent: Reloading services after SIGHUP
Feb 17 13:50:45 openmv smbd[21336]: [2017/02/17 13:50:45.035293, 1] ../lib/param/loadparm.c:1638(lpcfg_do_global_parameter)
Feb 17 13:50:45 openmv smbd[21336]: WARNING: The "null passwords" option is deprecated
Feb 17 13:50:45 openmv systemd[1]: Reloaded LSB: start Samba SMB/CIFS daemon (smbd).
Feb 17 13:50:45 openmv smbd[32736]: Reloading /etc/samba/smb.conf: smbd.
I don't understand why ? I don't autorize clients to connect without password.