So here is my solution... Stop the NPVR services. Then go into services via computer management and change the Startup type for NPVR Recording Service from automatic to manual. Changing to manual will prevent the service from restarting on reboot or power up. Also in NPVR settings\Misc2, deselect Auto Update EPG. Although not directly related, my guess is that the client doesn't need this - EPG updating etc. is handled by the server machine. I figure this will prevent the client machine from getting woke up in the middle of the night for this unnecessary reason. Note: none of this appears to have much impact on the NPVR client. It still plays live TV and invokes recordings etc. Don't know what it might do with scheduling recordings though.
So if I'm wrong about the above... Somebody let me know.
So if I'm wrong about the above... Somebody let me know.