Tricks and tricks to improve the operation of the connection Wi-Fi There are a few in the home, but not all of them have the same foundation or the same effect. Some are downright useless.like placing a coin on top of the router in the hope that it will act as some kind of improvised signal amplifier. Others, however, start from a real physical basis, such as the aluminum foil behind the router..
Wifi works using radio waves and those waves can be reflected, absorbed or deflected when encountering certain materials. The metals, including aluminumcan act as a reflective surface. Therefore, placing a sheet of aluminum foil behind the router can help. to redirect part of the signal towards a specific area of the house.
It is not a magic solution nor does it increase the real power of the router, but Yes, you can modify the direction in which the signal is distributed. If the router is next to an exterior wall, for example, some of the coverage may be lost to an area where you don’t need it. An aluminum reflector placed behind could push part of that signal into the interior of the home. Thus, areas where the signal previously reached weakly could receive it with more intensity as it did not disperse.
But the aluminum foil should not be placed just any way. If it is placed under the router, as is sometimes said, it is of little use and can even be counterproductive if it obstructs the ventilation of the device. The most reasonable way would be place it behind, slightly curved, as if it were a small reflective screen facing the area where you want to improve coverage.
This trick has technical support. Researchers of the Dartmouth University They demonstrated years ago that reflective surfaces designed with a specific shape could modify Wi-Fi coverage inside a home. The key was precisely in the design and orientation of the reflector, not in the simple presence of aluminum.
But before resorting to aluminum foil, the most effective is usually check router location. It is best to place it in an elevated, open area that is as central as possible, away from thick walls, metal furniture, televisions, microwaves and aquariums. If the house is large or has several floors, a system mesh wifi or a wired access point will be much more reliable than any homemade fix.