diff --git a/tns-core-modules/connectivity/connectivity.android.ts b/tns-core-modules/connectivity/connectivity.android.ts
index c5c7beec1..f2a9740e4 100644
--- a/tns-core-modules/connectivity/connectivity.android.ts
+++ b/tns-core-modules/connectivity/connectivity.android.ts
@@ -46,7 +46,8 @@ export function startMonitoring(connectionTypeChangedCallback: (newConnectionTyp
         let newConnectionType = getConnectionType();
         connectionTypeChangedCallback(newConnectionType);
     }
-    androidApp.registerBroadcastReceiver(android.net.ConnectivityManager.CONNECTIVITY_ACTION, onReceiveCallback);
+    let zoneCallback = <any>zonedCallback(onReceiveCallback); 
+    androidApp.registerBroadcastReceiver(android.net.ConnectivityManager.CONNECTIVITY_ACTION, zoneCallback);
 }
 
 export function stopMonitoring(): void {
diff --git a/tns-core-modules/connectivity/connectivity.ios.ts b/tns-core-modules/connectivity/connectivity.ios.ts
index 9e3717929..da9848437 100644
--- a/tns-core-modules/connectivity/connectivity.ios.ts
+++ b/tns-core-modules/connectivity/connectivity.ios.ts
@@ -72,7 +72,7 @@ let _connectionTypeChangedCallback: (newConnectionType: number) => void;
 export function startMonitoring(connectionTypeChangedCallback: (newConnectionType: number) => void): void {
     if (!_monitorReachabilityRef) {
         _monitorReachabilityRef = _createReachability();
-        _connectionTypeChangedCallback = connectionTypeChangedCallback;
+        _connectionTypeChangedCallback = <any>zonedCallback(connectionTypeChangedCallback);
         SCNetworkReachabilitySetCallback(_monitorReachabilityRef, _reachabilityCallbackFunctionRef, null);
         SCNetworkReachabilityScheduleWithRunLoop(_monitorReachabilityRef, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode);
     }