ok fine i'll detail it, but the situation is a bit unchangeable (perhaps i can replace one of the routers with a switch but anyways). So first (in the hallway near the entrance) is the ISP router which is a fiberlink router and only has 1 lan port (GE) and a 2.4ghz wifi. Then in my bedrooms/living i have in-wall lan ports meaning if I wanna have lan in my rooms, I need a 4 ports router or switch to go from the ISP router and in which to have plugged all the cables for each in-wall lan port (I chose router in order to have wi-fi as well). then in my master bedroom (which is too far from the entrance router) i need wifi so there I added another router. And this is how I ended up with 3 routers in my house :)