Get a high-gain antenna for your wireless router

If you can’t more the router, you can try replacing your router’s antenna with a high-gain antenna. You can’t replace antennas on all routers, but you can do so on many newer models.

Antennas on most routers have 360 degree coverage. If your router is located in one cornet of the building, a good part of its coverage area will lie outside the building. In such cases, you can get unidirectional high-gain antennas which transmit signals in 180 or even 90 degrees. Again, you must have router which allows you to replace its antennas.