Here is a student dormitory with 5 floor. Each floor has own 7982 AP's at the middle of hall. A ZD1106 controls them. Most users are smartphone users. Some of them always complain of suddenly loosing wireless connection. I have a suspicious about channel fly because lots devices are not new technology and might be cannot able to hear the migration of the AP's channel changes at channel fly. I want to cancel channel fly and test again my system. I will set the channels manually. Should I set the same channels to the all AP's or set different channels per AP's?