That is the popular wisdom, but in my experience it&#x27;s not universally true.  I have had good results in an apartment building by choosing channels between 1, 6, and 11.  Signal strength sometimes went up quite a bit.<p>For example, if there are 3 APs on each of the three non-overlapping channels, using a channel between those channels may provide better results than directly competing with 3 other APs for the entire channel.<p>However, it also depends on the observed signal strength for each of the competing APs.  For best results, you should probably test your equipment.<p>But if you really want decent transfer rates between devices, just use Ethernet.  I&#x27;ve given up on ever reaching even 50% of rated speeds on wifi.  With competing APs, walls, distance, etc, it&#x27;s just never going to happen.