iPad/MacBook Air connectivity.
I have a iPad 6th Gen running iOS 13.3, and a Late 2018 13" MacBook Air running OS Catalina 10.15.2. I have tried to use the iPad as a 2nd screen by connecting it using the lightening cable but, although the iPad starts charging, it won't act as a 2nd screen. I have followed the instructions for setting it up without any luck. I read you are supposed to be able to connect in this way, but unless I turn on the wireless on on the Air, there is no connection. I have the Air connected to my router via ethernet cable, just to be clear.
MacBook, macOS 10.13