Reachability iOS 10.1 with IPv6 network

Our app has been rejected 4 times cause we show an alert saying "Hey, you don't have an internet connection" when instaed the device is connected to a IPv6 network.

The problem is that we don't have any reachability problem during tests. We've also followed Technical Q&A QA1764 but everything works.

It couldn't be a server-side problem cause at this point we' not made any http request yet.

We’ve replaced our Reachability pod with the Reachbility files written in Obj C we’ve found in Apple’s documentation and this is our code

Do you see some mistakes?

AppDelegate.swift

class AppDelegate: UIResponder, UIApplicationDelegate {

  var window: UIWindow?
  var internetCheck: Reachability?

  func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
       // MARK: - Reachability
       NotificationCenter.default.addObserver(self, selector: #selector(AppDelegate.reachabilityChanged(notification:)), name: NSNotification.Name.reachabilityChanged, object: nil)
       internetCheck = Reachability.forInternetConnection()
       internetCheck!.startNotifier()
       statusChangedWithReachability(currentReachabilityStatus: internetCheck!)
  }

  func applicationDidEnterBackground(_ application: UIApplication) {
        internetCheck!.stopNotifier()
    }

  func applicationWillTerminate(_ application: UIApplication) {
       NotificationCenter.default.removeObserver(self, name: NSNotification.Name.reachabilityChanged, object: nil)
  }

  //- - -
  // MARK: - Reachability
  //- - -

  func reachabilityChanged(notification: NSNotification) {
     let reachability = notification.object as! Reachability
     statusChangedWithReachability(currentReachabilityStatus: reachability!)
  }

  func statusChangedWithReachability(currentReachabilityStatus: Reachability) {
     let networkStatus: NetworkStatus = currentReachabilityStatus.currentReachabilityStatus()

     switch networkStatus.rawValue {
     case NotReachable.rawValue:


     // MARK: - START Reachibility Pop-Up Alert
         reachabilityStatus = NOACCESS
         if let vc = UIApplication.shared.keyWindow?.topController() {
             print("- - - AppDelegate.reachability.whenUnreachable: VC - - -")
             AlertManager.noInternetConnection(viewController: vc)
         } else {
             print("- - - AppDelegate.reachability.whenUnreachable: NIL - - -")
             AlertManager.noInternetConnection(viewController: nil)
         }
     // MARK: - END Reachibility Pop-Up Alert

     case ReachableViaWiFi.rawValue: reachabilityStatus = WIFI
     case ReachableViaWWAN.rawValue: reachabilityStatus = WWAN
     default: return
     }

     NotificationCenter.default.post(name: NSNotification.Name(rawValue: "ReachStatusChanged"), object: nil)
  }
}