I just installed Windows Server 2012 R2 Essentials on my home server (replaced Windows Home Server 2011), and my Surface Pro 3 is the only PC in the house that won't wake for its evening backups. The tablet is plugged in, connected to the Pro Cover, and open on a table. The connector software is properly installed, and a manual backup completed successfully. Any ideas? Anyone have any experience with this combination? Any help would be greatly appreciated!