He estado luchando por conectarme a la red WiFi en Android 5 y 6 por un tiempo y otras preguntas similares no parecen funcionar para mí. Podría obtener el mismo código trabajando en Android 4.4.2

Agregar el fragmento de código a continuación.

        String networkSSID = getSsid();
        String networkPass = getNetworkPass();

        WifiConfiguration conf = new WifiConfiguration();
        conf.SSID = "\"" + networkSSID + "\"";
        conf.status = WifiConfiguration.Status.ENABLED;
        conf.priority = 40;

        conf.allowedProtocols.set(WifiConfiguration.Protocol.RSN);
        conf.allowedProtocols.set(WifiConfiguration.Protocol.WPA);
        conf.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK);
        conf.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.CCMP);
        conf.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.TKIP);
        conf.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.WEP40);
        conf.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.WEP104);
        conf.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP);
        conf.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);

        conf.preSharedKey = "\""+ networkPass +"\"";
        int value = mWifiManager.addNetwork(conf);
        Log.i(TAG_CHECK, "Connecting to : " + value);
        boolean enabled = mWifiManager.enableNetwork(value, true);
        Log.i(TAG_CHECK, "enabled to : " + enabled);
        mWifiManager.reconnect();

Y aquí está lo que noté.

mWifiManager.addNetwork (conf)

devolucionesalgunos (+) enteros con Android 5 (teléfono) y Android 6 (pestaña).

Pero ambos no se conectan a menos que abra la configuración wifi (no tengo que hacer nada y solo aterrizo allí se conecta) o apago y enciendo manualmente Wifi desde la barra superior para conectar automáticamente.

Los oyentes para detectar la conexión a la red están en contacto para que ambas versiones sepan con precisión cuándo se establece la conexión, confirmando el comportamiento anterior. Adjunto una foto de los permisos otorgados a continuación.

¿Alguna sugerencia sobre lo que me estoy perdiendo?

EDIT: Al excavar en la clase WifiManager, parece que el punto de acceso permanece en estado WIFI_AP_STATE_DISABLED. También debo resaltar que todo funcionó como se esperaba al probar en un teléfono Android M diferente.

EDIT2

I have the following observations.

1. The issue so far is specific to 1 android 6.0.1 Samsung tablet and 1 android 5.0.2 Micromax phone. It works just fine on 3 other android 6.0.1 phones, 1 android N phone and Android 4.4.2 phone. 
2. The access point ends up in wifi_ap_disabled state in the problematic cases consistently. Both addNetwork and enableNetwork calls are affirmative.
3. These access points are not that of a router wifi but that of other phones that broadcast. The problematic phones can programatically connect to wifi hotspots (setup manually and not in the programatic way as I would like to) without any issue.
4. Mobile data enabled/disabled state or wifi state with a different connected network doesn't change the dynamics for both working and problematic phones. 

This makes me think that it is a combination of phones/tabs (and not OS) and the access point broadcast configuration. Do you think I should be playing around with some config parameters?



Edit 3 - Important Update

So the wifimanager is obtained like below

WifiManager mWifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);

I instantiate mWifiManager in a service (inside onCreate method) and use that later to scan and connect with inputs from front-end activity. While it doesn't work in the way as described earlier, using the same snippet seems to work when the enableNetwork call is done right in the onCreate method - working just as expected. It also works fine when called from front-end activity but only when I don't instantiate mWifiManager in the service.

Though I would expect only one reference to a system service - WifiManager i.e, I think the subsequent usage of that reference (or a different reference to WifiManager) gets a lower priority (or gets deprioritized  by the previous reference)  and hence doesn't get completely executed leaving the access point in disabled state and requiring manual intervention to help complete the execution by WifiManager and other wifi system services.

Also, I notice the same in Android 5.0.2 phone, the asynchronous enableNetwork does get executed, but it takes some time to execute it.

My questions
1. It is no more a question about the correctness of the code. Services in general have lesser priority compared to front-end threads So, is there is way I could prioritise the enableNetwork call so that it gets immediately executed?
2. What happens in case of multiple references to WifiManager?