Hello, I recently upgraded my Netgear RB8000 Nighthawk (with 2 extenders) to Arris mAX6600 mesh (my first true mesh system). I am disappointed with the range & that you can only add 2 nodes. The 2 pack said it covers 5500 sqf. I also bought an extra node so that should put me up to 7000 sqf. All...