4 iPhones with ios14.3 all suffering loss of internet when connected to 5ghz wifi. Reset network settings and reconnect works for a while but loses Internet after variable amount of time. 2.4ghz is much more stable and acceptable. Wifi privacy on or off does not help with problem or does changing wifi channel. 3 android devices and computers connected with wifi have not had any problems. This is an Apple software disaster and needs the most urgent attention from Apple developers. We need an interim release of an earlier version that does not lose Internet while Apple is sorting it out. wake up apple.