To be very clear. That isn't the issue on Android. The issue on Android is your app tries to install a WiFi profile and modern versions of Android do not allow this from apps. So you have not fixed the app or the issues. You need to provide people...
https://community.virginmedia.com/t5/Networking-and-WiFi/Can-t-connect-to-hotspot/m-p/4998498/highlight/true#M472582 The message near the end of the thread from johnforty shows how to manually set it up on Android