Flutter, Unhandled Exception: HandshakeException: Connection terminated during handshake

class MyHttpOverrides extends HttpOverrides {  @override  HttpClient createHttpClient(SecurityContext? context) {    return super.createHttpClient(context)      ..badCertificateCallback =          (X509Certificate cert, String host, int port) => true;  }}HttpOverrides.global = MyHttpOverrides();

Many answers have answered as above and I have tried many times

I have 2 Android devices and 2 iPhone devices, and actually 1 devices are in use. (I use them they don`t need Wifi)

Unhandled Exception: HandshakeException: Connection terminated during handshake

It seems to have something to do with wifi.