Onkyo Receiver Remote Not Working. Find the onkyo remote app, then tap on it. The other day i noticed that my onkyo receiver was not showing up in home assistant, nor was the onkyo remote app on my phone able to connect to it.
I would try opening the remote and checking that the buttons are making a solid connection when pressed and not dirty or damaged. Drag it to the icon on the top of your screen where it says uninstall. If your roku is hdmi connected to your avr, then yes there's no need for the optical connection as well.