Disabled clients in SEPM

I recently had to reload my SEPM box which manages my client and mobile machines.  This was due to an inability in the server to update/download recent Windows definitions.  After reloading the database from a backup (from the previous day) and reestablishing all of my clients in the client list, I checked the home page which shows 2/3 of my Endpoints as being Disabled.  How do I rectify this?

Currently running SEPM 12.1.2015

If you need any other information, just ask!  Thanks!