Suggestion 3: Move
Mirrors and/or Large Furniture away from your router and do not put them between your Hot Tub and your Router.
All metallic surfaces reflect WiFi signals, including the thin metal layer found in most mirrors.
Move large furniture away from the path to your Hot Tub. Signals that don't have to travel through large, cumbersome furniture will make reception better.
Your TV is Murder for Your Wi-Fi Signal