WSA not detecting device to be offline

[n-kumari]

Steps to reproduce

I want to detect when Internet connection is lost in my app and perform certain operations accordingly. I am using following function to detect the connection

fun checkInternetConnection(context: Context): Boolean {
  val result = false;
  val connectivityManager = getSystemService(ConnectivityManager::class.java) as ConnectivityManager
  val networkRequest = NetworkRequest.Builder()
    .addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)
    .addTransportType(NetworkCapabilities.TRANSPORT_WIFI)
    .addTransportType(NetworkCapabilities.TRANSPORT_CELLULAR)
    .build()

    connectivityManager.registerNetworkCallback(networkRequest, object : NetworkCallback() {
        override fun onAvailable(network: Network) {
            super.onAvailable(network)
           result = true
        }

        override fun onLost(network: Network) {
            super.onLost(network)
           result = false
        }
    });
   Log.e("TEST", "Is network available: " + result);
   return result;
}

Create a button and set it's on click listener app as following:

        findViewById<Button>(R.id.check_connection)
            .setOnClickListener {
                if(!checkInternetConnection(applicationContext)) {
                    Toast.makeText(this, "Connection LOST!!!!!", Toast.LENGTH_SHORT).show()
                } else {
                    Toast.makeText(this, "Connected to Internet", Toast.LENGTH_SHORT).show()
                }
            }

Switch off WiFi and turned on airplane mode on Windows 11 laptop to make the WSA offline.

✔️ Expected Behavior

The toast with message Connection LOST!!!!! is displayed on button click

❌ Actual Behavior

The toast with message Connected to Internet is displayed on button click

Notes:

• The logs do show the device as offline for few milliseconds before it shows the device as online again which makes it seem that network status is registered correctly by WSA initially but changed for some reason right after.
• The connectivity determination seems to work on newer Windows 11 OS version (e.g, 22621.2715) when using net_capability_validated but this is not the recommended method by Android to detect network connectivity as it uses a finer control. On relatively older Windows 11 OS version (e.g., 22000.2538), however, even using net_capability_validated does not work reliably.
• The same app when it runs on Android device shows correct toasts based on the device internet connectivity. When airplane mode is turned on, it shows message as Connection LOST!!!!!. On turning airplane mode off, Connected to Internet is displayed.

Other Software

No response

Please specify the version of Windows Subsystem for Android

2309.40000.10.0

[parveen-bhatia]

Any update on this @microsoftopensource ?