On MacOS , I was able to set the "HostName" on the device, as it was unset.   The command to do that is:   sudo scutil --set HostName <devicename> . (This command will set the HostName value.)   scutil --get HostName .   (This will show what HostName is set to.)   where the <devicename> is the name you want.   Other device names can be seen using:   scutil --get HostName scutil --get ComputerName scutil --get LocalHostName   ... View more