Just to add some more detail on Godfrey’s WiFi improvement suggestion, since I just had to research this last week:
Cheap WiFi amplifiers like Godfrey was talking about are definitely useful, but in the context of a “high end” option, they would not be my suggestion.
Depending on your particular needs, I’d recommend either a better router—this applies primarily to people who use the default ISP equipment—or a mesh network.
Without getting too technical, a mesh network will offer a better experience than an extender. I just got this setup:
NETGEAR Orbi Ultra-Performance Whole Home Mesh WiFi System - WiFi router and single satellite extender with speeds up to 3Gbps over 5,000 sq. feet, AC3000 (RBK50)
https://www.amazon.com/dp/B01K4CZOBS/ref=cm_sw_r_cp_api_i_KpEuDbED7J5Q4
Cost was appx 285. I’m returning the ISP equipment so that will knock a few bucks off the monthly bill. I’m going with this upgrade mostly for performance, and not price, though.
Should be arriving today or tomorrow so I can’t offer a review yet, but I’m confident based on research that it should be what I’m looking for.