Connecting to a display is something I can try, but I'd rather avoid it since it defeats the purpose of a headless Mac.

I seem to remember a while ago that a Mac Mini would sleep if a display wasn't connected. Set automatic login using a local administrator account and disabling screen saver - no change Changed IP completely to another reserved address Disabled WiFi, set wired NIC to manual IP, DNS and search domain (in case something else was taking over it's IP) Installed Amphetamine and activated - no change Installed Caffeine and enabled 'Indefinite' timer - no change Disabled 'Put hard disks to sleep when possible' Enabled 'Prevent computer from sleeping automatically when the display is off' Completely disable sleep, both in the UI and via command line (confirms that sleep is set to 'Never'). Having tried pretty much everything (see below) I'm reaching out here to see if anyone else is having similar issues. It comes back eventually but makes it very difficult to use it as a file share distribution point in Jamf if it can't be mounted half the time. I've successfully deployed one Mac Mini as a POC, and while it works as intended the machine is constantly going to sleep and not responding to ICMP. Server.app is installed but this probably isn't necessary since both of the above are built-in to macOS. These will act as file share distribution points and have the content caching service installed. I'm in the process of building macOS Mojave replacements for our legacy Mac servers.

Mac what is jamf