Hi! Try to select "Any activity" for "Wakeup signal from TV" in HDMI - CEC. Also, all other option should be enablaed to "yes" except "Forward volume keys" and "Minimum send interval" In my case it's works fine. Receiver conected to TV thru Yamaha A/V receiver. Receiver wake's up when I'm enabla TV and goes to StandBy when I'm disable TV.
