If I cut the ethernet connection, I think the Home app probably won't be able to link to the Pro and show me anything, let alone whether the wifi toggle is back. No? Although I'm fine with ethernet, if I were going to switch to wifi, wouldn't I need to be able to turn it on and enter the usual password security settings prior to unplugging the ethernet? Or, will the WiiM Pro simply expect to be paired up with BT in this scenario?