Apps Difference in several ways to toggle WIFI tethering

[bnwgraaf]

My car can connect to my phones WIFI hotspot.

Unfortunatelly, everytime I start the car, I have to (re)connect. During driving, the connection is kept nicely.

The strange thing is, that after starting the car, the entertainment system does not connect automatically, but I discovered the next thing after starting the car (and with that the entertainment system):
If I turn off and on the WIFI hotspot through the Android ROMs tiles, the connection is made automatically.
If I turn off and on the WIFI hotspot with a toggle widget or a profile scheduler, than it will not connect.
Instead I get a DHCP error, if I try to connect...

So my question is, is there a difference if you toggle WIFI hotspot with the tiles or with code?

I have tried several profile task apps, with no success. I have used an own written (copied) peace of code, also with no success. I used this peace of code:

import android.content.*;
import android.net.wifi.*;
import java.lang.reflect.*;
/**
* Created by B.Graaf on 20/10/2016.
*/
public class WifiApSwitch {

        //check whether wifi hotspot on or off
        public static boolean isApOn(Context context) {
            WifiManager wifimanager = (WifiManager) context.getSystemService(context.WIFI_SERVICE);
            try {
                Method method = wifimanager.getClass().getDeclaredMethod("isWifiApEnabled");
                method.setAccessible(true);
                return (Boolean) method.invoke(wifimanager);
            }
            catch (Throwable ignored) {}
            return false;
        }

        // toggle wifi hotspot on or off
        public static boolean configApState(Context context) {
            WifiManager wifimanager = (WifiManager) context.getSystemService(context.WIFI_SERVICE);
            WifiConfiguration wificonfiguration = null;
            try {
                // if WiFi is on, turn it off
                if(isApOn(context)) {
                    wifimanager.setWifiEnabled(false);
                }
                Method method = wifimanager.getClass().getMethod("setWifiApEnabled", WifiConfiguration.class, boolean.class);
                method.invoke(wifimanager, wificonfiguration, !isApOn(context));
                return true;
            }
            catch (Exception e) {
                e.printStackTrace();
            }
            return false;
        }
    } // end of class