Virtual camera image is not displayed on ipad

I am creating a test scene for a virtual camera.
I was able to control the UE4 camera with my ipad, but the image does not seem to show up on the ipad.
Now the ipad just shows the ip address and a gray cancel button. Is this a wrong setting on either the ipad or UE4? Or is it a version specific issue?
I am using UE4 27, ipad 6 generation, IOS 15.3.1. Any tips would be appreciated. Thank you.