A week ago I was down for over two days and someone finally gave me the fix. It works!
Unplug Nfusion HD stb from the wall OVERNIGHT. (or 8-10 hours) All will come back fine.
I know from past days about cpu's (microprocessors). By design when a cpu gets an illogical or wrong command, line spike, ect it does not know what to do so it does nothing. By unpluging for (usually) a few minutes it cools off and functions again as it should.
This tip holds true for TV's, microwaves, sometimnes computers. Most anything with a microprocessor....dd