We have 3 iPhones in my family, wifi quit working on all of them after updating to iOS 14, have tried all the suggestions on this thread and can't find a solution. Can't revert back to previous versions because I have to have wifi to proceed. Replaced one of my phones with iPhone 12 pro, it came with iOS 14 installed wifi doesn't work on it. We also have 3 iPads that will not be updated until Apple resolves this issue