[Answer ID: 14264]
Active Directory domain limitation, more than 1000 domain users, use Delegate Authority option
The unit has a limitation that it can download up to 1000 domain users/groups.
If you want to use domain user accounts, you will need to use the Delegate Authority to an external SMB Server option.
Follow the steps below:
Select Workgroup, check "Delegate Authority to External SMB Server", "Use Windows Domain Controller as Authentication Server", "Automatic User Registration"and "Authentication Shared Folder" sections, and enter the required information.
The "Authentication Shared Folder" option will create an open share. Have the domain users that are to access the unit login to that share.
This will register those users on the TeraStation. Afterwards, Access Restrictions may be set on the shares using those users and remove the "Authentication Shared Folder".