> I'm not even sure if it helps, though I did ensure that the two APs are operating on the two least-noisy channels. It may help in noisy neighborhood, though

> I'm not even sure if it helps, though I did ensure that the two APs are operating on the two least-noisy channels. It may help in noisy neighborhood, though your post sounds like you may not be aware that WiFi channels partially overlap. Which they do, see Wikipedia or something for details if unsure.