So my bet is some HDMI CeC (a control/command system) is in play or the Onkyo has some power saver setting. The story won't tell us which of these two to look into but it shouldn't be ARC.
We have an LG UH8500 and Onkyo NR3030 connected using ARC. Everything is working fine except when I pause a Netflix movie (accessed via the TV) the Onkyo powers off after maybe 3 minutes. When I power the Onkyo back on and resume playing Netflix all is well. Is there a setting timing setting either on the LG or the Onkyo that's causing this?

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