NativeWifi not showing connected devices

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C#

ASP.NET

Hi,

I am using NativeWifi dll for finding devices connected to a wifi network. I can find list of connected devices. But, In case of iphone, if I press power button of iphone and put phone in idle mode , I get iphone as disconnected from wifi but actually it is connected to wifi

If I press sleep button of android mobile, it remains shown as connected with nativewifi.

Anyone faced such issue? or any possible solution?

Code to find wifi devices is below:

public void FindNetworks()
        {
            List<string> deviceList=new List<string>();
            
            try
            {

               // for (int i = 0; i < 1; i--)
               //{

                    int networkID = 0;
                    WlanClient client = new WlanClient();
                    string networkName = string.Empty;
                    string signalQuality = string.Empty;

                    foreach (WlanClient.WlanInterface wlanIface in client.Interfaces)
                    {
                        Wlan.WlanAvailableNetwork[] networks = wlanIface.GetAvailableNetworkList(0);
                        foreach (Wlan.WlanAvailableNetwork network in networks)
                        {
                            
                            Wlan.Dot11Ssid ssid = network.dot11Ssid;
                            networkName = Encoding.ASCII.GetString(ssid.SSID, 0, (int)ssid.SSIDLength);
                            networkName = networkName.Replace("'", "");
                            signalQuality = network.wlanSignalQuality.ToString();

                            networkID = _odbContext.InsertNetworks(1, networkName, signalQuality);


                            if (network.profileName == wlanIface.CurrentConnection.profileName)
                            {
                                
                                deviceList = GetConnectedDeviceList();
                                if (deviceList.Count > 0)
                                {
                                    bool result = _odbContext.UpdateConnectDisconnectStatus(deviceList);
                                 //   _odbContext.InsertHistory(deviceList);
                                    foreach (string devicename in deviceList.ToList())
                                    {
                                        string maac = "";
                                        var deviceMaac = dbContext.DevicesDetails.Where(x => x.DeviceName == devicename).FirstOrDefault();
                                        bool result1 = _odbContext.InsertNetworkDevices(1, networkID, devicename, deviceMaac.DeviceMaac);
                                        bool result2 = _odbContext.InsertEmployeesStatus(devicename, deviceMaac.DeviceMaac, 1);
                                        DeviceHistory deviceHistory = dbContext.DeviceHistories.Where(x => x.DeviceName == devicename && x.DisconnectedAt == null).FirstOrDefault();
                                        if (deviceHistory == null)
                                        {
                                            lstNewlyConnectedDeviceName.Add(devicename);
                                            DeviceHistory odh = new DeviceHistory();
                                            odh.ConnectedAt = DateTime.Now;
                                            odh.DeviceName = devicename;
                                            dbContext.DeviceHistories.Add(odh);
                                            dbContext.SaveChanges();
                                        }
                                        
                                    }
                                    IQueryable<devicehistory> lstDeviceHistoryForConnected = dbContext.DeviceHistories.Where(x => x.DisconnectedAt == null);
                                    foreach (DeviceHistory device in lstDeviceHistoryForConnected.ToList())
                                    {
                                        if (!deviceList.Contains(device.DeviceName))
                                        {
                                            device.DisconnectedAt = DateTime.Now;
                                            //dbContext.Entry(device).State = EntityState.Modified;
                                            dbContext.SaveChanges();
                                            //dbContext.SaveChangesAsync();

                                        }

                                    }
                                

                                    deviceList.Clear();
                                }
                                   
                            }

                        }
                        break;
                   }

                    if (networkID == 0)
                    {
                        _oException.UserExcepMessage(1, "FindNetworks()", "No Networks Found. Please check your router.");
                    }
               // }
            }


            catch (Exception ex)
            {
                _oException.UserExcepMessage(1, "FindNetworks()", "Exception = " + ex.Message.ToString());
            }