Minecraft tells me I am unable to connect to a friends world whilst we are on the same WiFi, however if I switch to 4G I connect with no issue. If I then go back onto WiFi I loose connection to the game and get dropped out.
The settings are all correct as others can join too, even on the same WiFi, but will not connect from my android to her IOS.
It will connect on the same WiFi from her IOS to my android.
Both phones and apps are fully up to date (iPhone 8 and Samsung Galaxy S9+)