diff --git a/v2rayN/v2rayN/Handler/TunHandler.cs b/v2rayN/v2rayN/Handler/TunHandler.cs
index 2f0746fa..4702f187 100644
--- a/v2rayN/v2rayN/Handler/TunHandler.cs
+++ b/v2rayN/v2rayN/Handler/TunHandler.cs
@@ -40,7 +40,7 @@ namespace v2rayN.Base
                  });
         }
 
-        public void Start()
+        public bool Start()
         {
             var socksPort = LazyConfig.Instance.GetLocalPort(Global.InboundSocks);
 
@@ -58,10 +58,11 @@ namespace v2rayN.Base
                 CoreStop();
                 if (Init() == false)
                 {
-                    return;
+                    return false;
                 }
-                CoreStart();
+                return CoreStart();
             }
+            return false;
         }
 
         public void Stop()
@@ -200,14 +201,14 @@ namespace v2rayN.Base
             return fileName;
         }
 
-        private void CoreStart()
+        private bool CoreStart()
         {
             try
             {
                 string fileName = CoreFindexe();
                 if (fileName == "")
                 {
-                    return;
+                    return false;
                 }
                 var showWindow = _config.tunModeItem.showWindow;
                 Process p = new Process
@@ -239,10 +240,13 @@ namespace v2rayN.Base
                 }
 
                 Global.processJob.AddProcess(p.Handle);
+                return true;
             }
             catch (Exception ex)
             {
+                _isRunning = false;
                 Utils.SaveLog(ex.Message, ex);
+                return false;
             }
         }
 
diff --git a/v2rayN/v2rayN/ViewModels/MainWindowViewModel.cs b/v2rayN/v2rayN/ViewModels/MainWindowViewModel.cs
index 38400250..346fbbb9 100644
--- a/v2rayN/v2rayN/ViewModels/MainWindowViewModel.cs
+++ b/v2rayN/v2rayN/ViewModels/MainWindowViewModel.cs
@@ -1481,7 +1481,7 @@ namespace v2rayN.ViewModels
         {
             if (EnableTun)
             {
-                TunHandler.Instance.Start();
+                EnableTun = TunHandler.Instance.Start();
             }
             else
             {
diff --git a/v2rayN/v2rayN/Views/MainWindow.xaml b/v2rayN/v2rayN/Views/MainWindow.xaml
index dc525929..d1f992d0 100644
--- a/v2rayN/v2rayN/Views/MainWindow.xaml
+++ b/v2rayN/v2rayN/Views/MainWindow.xaml
@@ -359,7 +359,8 @@
                             <ToggleButton
                                 x:Name="togEnableTun"
                                 Margin="4"
-                                HorizontalAlignment="Left" />
+                                HorizontalAlignment="Left"
+                                IsChecked="{Binding EnableTun}"/>
                         </StackPanel>
 
                         <StackPanel
diff --git a/v2rayN/v2rayN/Views/MainWindow.xaml.cs b/v2rayN/v2rayN/Views/MainWindow.xaml.cs
index 75585148..f5f92c4a 100644
--- a/v2rayN/v2rayN/Views/MainWindow.xaml.cs
+++ b/v2rayN/v2rayN/Views/MainWindow.xaml.cs
@@ -43,6 +43,7 @@ namespace v2rayN.Views
             }
 
             ViewModel = new MainWindowViewModel(MainSnackbar.MessageQueue!, UpdateViewHandler);
+            this.DataContext = ViewModel;
             Locator.CurrentMutable.RegisterLazySingleton(() => ViewModel, typeof(MainWindowViewModel));
 
             Global.Languages.ForEach(it =>
@@ -181,7 +182,7 @@ namespace v2rayN.Views
             var IsAdministrator = Utils.IsAdministrator();
             this.Title = $"{Utils.GetVersion()} - {(IsAdministrator ? ResUI.RunAsAdmin : ResUI.NotRunAsAdmin)}";
 
-            spEnableTun.Visibility = IsAdministrator ? Visibility.Visible : Visibility.Collapsed;
+            //spEnableTun.Visibility = IsAdministrator ? Visibility.Visible : Visibility.Collapsed;
         }
 
         #region Event