I found the new 4K (HDR) Firestick to function much better than the 2nd Gen Firestick. It downloads app pages much faster. And with the added on/off function of the TV, and controlling my surround system volume/mute, awesome. There are no special settings to get through to use those functions! I was using the Ethernet adapter on the 2nd Gen Stick, but found it useless to use with this Stick. It only caused interference problems and appears to only see WiFi. So I unplugged the adapter and went with just using the WiFi. The interference stopped and now it works great! Now to only get a 4K TV!