Isn’t permission problem, i have check via GUI and Reset Permission on folder.
I have try with my user and admin user.
yet I am convinced that it is a name resolution problem.
I tried to insert the entry into the LMHOST file in ipv4 protocol
192.168.1.2 DOMAIN
1.2 is the nsdc ip
for once it has been authenticated,
I restarted the pc and you no longer logged in