I'm a network novice, so please bear with me.
I want to extend internet coverage throughout the apartment, and I have no idea how to do it.
Our apartment looks more or less like the image below. The issue is that the concrete walls are thick at about 1', and there's a block of concrete (marked concrete) that's about 6x2 feet. The red indicates the electric outlets.
I was thinking of buying several wifi boosters and even a router, but I'd be buying without knowing.
So any help is appreciated.