CCI? What CCI? EACH AP HEARS EVERY AP!!!!! Sorry for shouting. pic.twitter.com/lChc0njny7— Steve McKim (@alfmckim) May 28, 2015
Yet another example of why your should NEVER (If you can at all avoid it) install APs in the hallways for client access in rooms.
You can see in the lower photo that all the APs hear ALL the other APs. You’re essentially creating a funnel for all the RF to propagate freely & easily. This causes high level of CCI and probably more importantly: THE WIFI IS NOT WHERE THE CLIENTS ARE!