Thanks for the reply, but that has been tried and it does not change anything. When I installed iOS 11 on the iPad mini 4’s, I restored and erased all the data on the iPad’s. I reinstalled all necessary apps before initiating the AC/RC/DJI Go4 App process. Still no go! The DJI app does not see anything. I am logged on, it knows who I am, the RC sees the AC, the AC sees the RC, but the App is a dead duck. Boy, I really regret updating the iPad’s OS. And DJI offers nothing to help us. No info, no troubleshooting steps. I’ve tried everything I can think of to get this working. This really stinks. Anyone have ANY ideas? Much thanks. RT