Suggestion 1: Move your 2.4 GHz router to maximize effectiveness
Where you place your router has a lot to do with how it performs. When placing a router, consider putting it:
Closer to your Hot Tub in the Home
On a top floor. Radio waves best travel down and laterally.
Off the floor, ideally on a wall mount or high shelf.
As far as possible from your neighbor's WiFi router (which, of course, you've made sure is using a different channel).
Away from cordless phones and microwaves, which operate on the same 2.4-GHz frequency. (There are some cordless phones that are WiFi friendly).
Away from power cords, computer wires, microwaves, baby monitors, and halogen lamps. These wires and waves can interfere with radio reception.