I've connected my macOS server (Mac Mini) to my Synology RS815+ NAS and loaded the folder where I wanted to place my macOS server managed Time Machine backups. However, I cannot get Time Machine to show the drive on other machines. It lists macOS server and has (null) for the drive. If I select the macOS server's local disk, it becomes available to all my other computers. Is there a trick to get this to work? I am currently backing up directly to the NAS, but I want to manage all backups via macOS server.