In that case, replace your router's omnidirectional antenna with a high-gain one.
From the tennessean.com
An omnidirectional antenna that does not require precise pointing can keep SOHO in touch with ground controllers.
From the newscientist.com
At that point, controllers will shut down the instruments, because the omnidirectional antenna cannot handle their output.
From the newscientist.com
Sidelobe jamming can be overcome by reducing receiving sidelobes in the radar antenna design and by using an omnidirectional antenna to detect and disregard non-mainlobe signals.
From the en.wikipedia.org
Communications depends on an omnidirectional low-gain antenna communicating at a low data rate and a steerable high-gain antenna, both in direct contact with Earth.
From the en.wikipedia.org
The antennas used by TCAS II include a directional antenna that is mounted on the top of the aircraft and either an omnidirectional or a directional antenna mounted on the bottom of the aircraft.
From the en.wikipedia.org
The 2.5 MHz antenna is one half-wavelength tall, and radiates in an omnidirectional pattern.