Number of WiFi clients is up to 5-10 (Tablets, Phones, TV), but same time work usually 3-5 devices.
Distance is not so long, just standard home environment up to 10-15 m and thru one or two walls (first and second floor).
My network center is in one corner of the home so is difficult to have full range from this point.
My living room is on opposite corner of the house, that is the reason why I don't use router with build in WiFi.
I think that two AP will cover all rooms (one first floor, and second ground floor).
As I described before I need same network for whole home f.e. 192.168.200.X same in wired and wireless network.
I'm looking for solution just to plug in the wall LAN socket without power supply (only PoE).
The best will be WiFi AC but N is also acceptable