I have setup a working Open Directory Master on on Mac-Server-1 running macOS Sierra and macOS Server 5.2 (latest as of today). I have also successfully started the Device Manager and enrolled a client computer with no problem. I have now also setup a working Open Directory Replica on Mac-Server-2 (at a different site) running MacOS Sierra and macOS Server 5.2. However, when I try to activate the Device Manager on the Replica, it stays Disabled. Is this by design that Device Manager can only be active on the Master? Or is this a bug? Steps: In macOS Server -> Profile Manger -> Device Manager, status is Disabled In macOS Server -> Profile Manger -> Device Manager, I click "Setup..." button New window appears telling me I can manage devices. I click "Next" The window now changes and asks me for a Name, E-mail, Telephone, and Address (presumably to generate a certificate?) I enter the info, and click "Next" The next window appears, telling me to click "Finish". I do. The window disappears, returning me to the macOS Server -> Profile Manger window, where the status of Device Manager still shows as Disabled. Ideas? Note1 :I tried uninstalling Server.app and deleting /Library/Server/* and reinstalling the Replica from scratch. Same behavior. Note2 : I tried reinstalling the entire server from scratch. Same behavior.