MCU Cannot Contact a Domain Controller (4237110)

When selecting a host and choosing Check for AD Readiness or Join to Active Directory from the Management Console for Unix an error message is received:

"The credentials could not be validated because a domain controller could not be located for ad.example.com To continue and log on to Active Directory using the credentials entered, click Continue."

Please ensure the account being used has permissions to join machines to the Active Directory (AD) in the environment.

The account must have permissions to add objects to Active Directory at minimum.