SEP Management Console updates but it does not update one server
I am administrating SEP for a client base of 200.
The SEP Management console (Version 12.1) is fully up to date with the latest AV Definitions.
Recently, one of the servers (DCs) never update and it always requires a manual install of the defintions and a reboot, but the downtime gets frustrating for the client.
Any suggestions as to why the server does not receive the update and how i can ensure the server updates every time.