socket.open fails with error ENETUNREACH (Network is unreachable)

[bmwertman]

I'm trying to connect to a Wifi OnBoard Diagnostic(OBD) connector interface for a car's OBD port from my ionic application. But the connection fails with the error message given below my code.

I even changed from $ionicPlatform.ready() to angular.bootstrap method of initializing my app like some other posts had suggested. But still the same issue. Any ideas?

function str2ab(str) {
    // var buf = new ArrayBuffer(str.length*2); // 2 bytes for each char
    var bufView = new Uint8Array(str.length);
    for (var i=0; i<bufView.length; i++) {
      bufView[i] = str.charCodeAt(i);
    }
    return bufView;
  }

  function connectToHost(host, port) {
    var socket = new Socket();
    socket.onError = function(errorMessage) {
      console.log("Error occured, error: " + errorMessage);
    };
    socket.onClose = function(hasError) {
      console.info("Socket closed, hasErrors=" + hasError);
    };
    socket.onData = function (data){
      var chars = new Array(data.length);
      for (var i = 0; i < data.length; i++) {
          chars.push(String.fromCharCode(data[i]));
      }
      var dataString = chars.join("");
      console.log(dataString);
    };
    socket.open(
      host,
      port,
      function(success) {
        console.log(success);
      },
      function(errorMessage) {
        console.log("Error during connection, error: " + errorMessage);
      }
    );
  }

  $scope.OBDPlugNames = [];
  function connectToPlug(){
    var config = $cordovaWifiWizard.formatWPAConfig($localstorage.get('wifiName'), $localstorage.get('wifiPassword'));
    $cordovaWifiWizard.isWifiEnabled().then(function (bool){
      if(bool){//It's enabled
        $cordovaWifiWizard.getCurrentSSID().then(function (res){
          if(res !== config.SSID){//connected to a wifi network besides the OBDII plug?
            $cordovaWifiWizard.disconnect(res).then(function (){//disconnect from current network
              $cordovaWifiWizard.connectNetwork(config.SSID)//connect to OBDII plug
              .then(function (res){
                $scope.OBDConnected = true;
                var PID = str2ab("010F0D");
                var disableEcho = str2ab("ATE0");
                connectToHost('MY_IP', MY_PORT)
              });
            });
          } else {
            $cordovaWifiWizard.connectNetwork(config.SSID)//connect to OBDII plug
            .then(function (res){
              $scope.OBDConnected = true;
              var PID = str2ab("010F0D");
              var disableEcho = str2ab("ATE0");
              connectToHost('MY_IP', MY_PORT)
            });
          }
        });
      } else {//it's disabled
        $ionicPopup.alert({
          template:  "<h3>Wifi is disabled</h3><br><strong><p>Please enable wifi and try again</p></strong>"
        });
      }
    });
  }

returns the following error;

Error during connection, error: failed to connect to /MY_IP (port MY_PORT): connect failed: ENETUNREACH (Network is unreachable)