Creating Mesh with ISP router
Creating Mesh with ISP router
If you can get the router/AP in the middle, and the walls aren’t something horrible for signal strength (like lath and plaster especially with horse hair, or cinderblock), and the floorplan is relative square, then a single good AP/router would likely be all you need. That is a generalized statement and there are a lot of variables. If you have a dozen small rooms instead of a handful of larger ones, that means more walls. If the floorplan is stretched out, like a so-called “shotgun house”, then you likely have the ends too far from the center, and two APs at the 1/4 - 1/3 marks would be needed. The type and placement if furniture and appliances also matters.
It's unclear how much space you have, but I can share what independent reviewers say about the AX21 coverage area. Make sure your walls aren't constructed from heavy concrete or similar materials that could interfere with Wi-Fi signals.