
Radios like air and height. A closet, a TV cabinet, and the floor behind the TV are how you invent dead zones. If the fiber jack is in a corner, that is a constraint — plan mesh from there, do not pretend the laws changed.
2.4 GHz goes further and hates microwaves. 5 GHz is faster and dies through two walls. Modern routers band-steer. Let them. One name for both bands unless you have a weird IoT brick that only speaks 2.4 — then a second SSID just for that brick.








