The typical range of a Wi-Fi network primary will depend on the number and the types of access points used to build. A Traditional home network that consists of one wireless network router can cover a single-family of up to 4-6 dwelling but often not much more. However for business networks with tons of grids of access points can cover the entire office buildings. The cost to build and maintain this network increase significantly as the range increases. The Wi-Fi signal range of any access points varies significantly from device to device. Factors that determine the range of access points includes:
Comparing it with your human voice, if you’re speaking with someone in another room, the receiver can hear you clearly if the doors between the 2 rooms are open. In the same way, obstructions like concrete walls or doors can decrease the wireless signal, therefore, lowering the range.
If you were outside with your router, you’ll be getting the full coverage of up to 80- 100 feet. However, moving the router inside with concrete wall or solid wood door will cause a decrease of speed to half.
Fortunately, most homes in Singapore is constructed internally with a false wall or drywall. The path loss for this kind of construction is much lesser than with concrete.
Physical obstructions like false walls, radio frequency interferences may impact the output signals for your Wi-Fi. For example, various home appliances like microwaves ovens, cordless phones, wireless baby monitors or wireless routers from your neighbour may cause interferences with your current Wi-Fi Network. In addition, other Wi-Fi networks using the same wireless channel in the same area might impact the performances.