Old poster, hoping the old guard here can help debug something.

I have a Denon 3310CI connected to several game consoles, Tivo, FireStick, etc. It's controlled w/ a Harmony remote. Everything's been working fine for years until the last 2 days.

When I execute my turn on sequence, no matter input was last used on the 3310, it defaults to HDMI 2 and is muted. If I switch inputs manually on the 3310, the volume continues to be low/off even with mute disabled. The ONLY way to get the volume back is to toggle the 3310 On/Off button, the Standby button won't do it. After toggling On/Off, I can switch to another input and volume is fine.

I thought it might have to do w/ CEC on that HDMI 2 input so I unplugged the source. Problem still happens. Barring having to reset my receiver and redo all my setup, any ideas what might be going on?

Thanks in advance.