So I know all about using channels 1, 6 and 11 as non-overlapping channels for 2.4 GHz wireless but does this rule still apply when living in a large apartment complex where everyone uses 1, 6 or 11 and probably stream video all day? I recently have had trouble with my two iphones and wireless printer trying to connect to my wireless router. My phones started saying unable to join network and printer wouldn't connect either. I tried all combinations of things I read on the internet and none of them were working. I changed my 2.4 GHz channel from auto to 6 (which had the fewest users but I have no idea how much they are using) and that didn't help but when I changed it to 8 everything started working as it should.
I am using an Airport Extreme router. Does this make sense that 8 would work better?