From the Embedded Web Server, click Settings > Security > Login Methods.
From the Network Accounts section, click Add Login Method > Active Directory.
Configure the settings.
Domain—Type the realm or domain name of the Active Directory server.
User Name—Type the name of the user that can authenticate to the Active Directory.
Password—Type the password of the user.
Organizational Unit—Type the organizational unit attribute the user belongs to.
Click Join Domain.