There are extenders either side of the wall.
How to get wifi through concrete walls.
Older houses that mysteriously refuse to let wi fi signals pass through their walls might have a hidden ingredient.
It has a strong range and can easily get to where you need it to go through any wall.
However even though this is positioned less than 5 m from the ap the signal is poor probably because it has to go through a brick wall.
However in reality some walls are thicker or use reinforced concrete and may block some of the signals.
It could be due to the material used for the wall or other physical barriers that block or weaken wi fi signals.
In theory wi fi signals are capable of passing through walls and other obstacles relatively easily.
Wire in the walls that kills the signal.
My idea is to install a second ac1200 range extender drill a hole in the wall and connect up the 2 extenders via ethernet cable i e.
Concrete with and without metal reinforcement is one of the worst building materials for wireless signals to pass through but masonry block and bricks can also be serious barriers for wi fi.
Materials such as drywall plywood other kinds of wood and glass can be easily penetrated by wireless signals.
The best wireless router for penetrating concrete walls is the netgear nighthawk r6900p.