I continue to not solve this problem.
now I'm on the remote site.
I installed a second nethserver, with a vpn tunnel I published the 2 net directly
1.x with samba services
and 18.x the network that must access remotely
(i remove completly alias 12.x)
the folders without authentication navigate, those protected no, keep asking me for the password.
I'm looking at all the logs
message / firewall / log.smb
but I find nothing.
Where should I look? do you have some advice?
in prompt i have run
net use * /delete
and retry connection
192.168.18.130 my pc
192.168.1.241 samba server