My Samsung Galaxy S9 connects to the Leisure 470 I just got using Wifi Direct, but after a few seconds it just disconnects and nothing displays
I gave up on Wifi Direct, but I was able to get it to connect with Smart View.
Better documentation on what connection methods are supported would be useful.
This is mainly caused by the network. The Wifi network may be not very good. Choose a better Wifi network and the issue will be solved.