I have CUE 2.0.1 CME 3.2.2
After I have finish setup Unity Express using the Initiation Wizard, and go into Unity Express by pressing the Message button. Rather than getting the usual "Please enter your password" I get a prompt saying that "For security reasons, initial setup of mailbox can only be done from primary extension." I have confirmed in Unity that extension, mailboxes exist and confirmed the primary extension as well.