1, adjust the position of the router, as far as possible to 2 meters above the place
2. Adjust the router's antenna
3, the router is best placed in the center of the house, try not to put in the corner
4, WIFI through 2 walls is generally not more than 15 meters, according to the different distance of the wall may be shorter any object blocking (especially conductors), will affect the wireless signal, shorten the distance!! If the wireless is interfered with, the distance will be shorter