10.13.66-17 Distro Update ... problems?

Has anyone else used the System Admin to update to the new distro version 10.13.66-17? System was currently on 10.13.66-16. I just updated one of my backup servers and now I don’t have access to it any more. It stated that the upgrade was successful however and acknowledging that message and attempting to get to the admin interface I found that not only could I not get to it however I can no longer even ping the server.

This server is housed at a remote location so I don’t have access to the console at the moment, however I will update this tomorrow with what I find on the console.

Is anyone else having any problems like me??

Ok found the servers console at just a blinking curser. A cold boot brought it back to a login prompt.

Does this upgrade require a reboot possibly?