A single router rarely covers a large home. Walls, floors and room layout weaken the signal and create dead zones.
Start with a floor plan
Mark the rooms where people work, stream and game. These are the places where a strong signal matters most.
Place access points centrally
Access points work best when they are mounted high and away from thick walls. Wired access points give the most reliable performance.
Count your devices
Phones, TVs, laptops and smart devices all share the network. More devices mean you need better planning, not just a faster plan from your provider.
Test after installation
Check speed in each room after setup so problem areas can be corrected early.