On the samba server, first run:

net rpc join -S _HOSTNAME_IN_CAPS_ -U Administrator
Note that after the S is not the domain name, it’s the hostname without the domain.

After entering the password, can then start samba.

Here is our smb.conf file:

# Global parameters
[global]
workgroup = DOMAINNAME
security = domain
encrypt passwords = Yes
password server = FQDN of domain computer
dns proxy = No
create mask = 0664
directory mask = 0775
hosts allow = 192.168.100. 127.

[users]
comment = Users’ Directories
path = /net/users/%u
read only = No

[designs]
comment = Designs Directory
path = /net/designs
read only = No

[topusers]
comment = Users’ Directories
path = /net/users
read only = No

Then edit the windows logon script to automatically mount these drives.