I have just had the above router arrive and wondering if any must do’s and dont’s on these. It will be used for multiple WiFi devices but also hardwired for Xbox one x and Netflix 4K streaming in the living room. It will also need to stream Netflix via WiFi for the upstairs and other smart TV’s including Sky Q. I have read conflicting reports about the QOS setting in these. Some say leave it off others say it works well? Also some of the firmware updates have caused problems so again some advise to roll it back? Any tips would be great.