the issue with that is that AVR-x3400h was impacted by the network issues that came with a firmware update June of last year. I spent an hour on the phone with someone at denon to try to get the firmware reverted, or an update file to use with a flash drive, but they won’t give it to me. Long story short, I can’t use the app....
That sucks. Also why I turn off firmware updates unless I know I'm gonna benefit, and I prefer doing it by usb. Read of far too many problems with firmware updates via wifi....