Depending on the size and construction of your house, even replacing with a high end router may not fix your issues if you *need* three WiFi boosters currently.
Placement of the transmitter is key to distributing the WiFi signal as widely as possible, this is typically in a central location, such as the ceiling in the middle of the house. For larger houses, especially those with thick solid walls, it may mean one or more around the property.
Ubiquiti supply a very wide range of “Professional” grade WiFi equipment that many people also install in their homes to get the best possible WiFi. It’s not cheap but with the right AP locations, will give you excellent, rock solid WiFi in any sized property (residential or commercial).
