diff --git a/JiLinApp.Docking/VibrateAlarm/Service/TcpManager.cs b/JiLinApp.Docking/VibrateAlarm/Service/TcpManager.cs
index 314953d..7c61d36 100644
--- a/JiLinApp.Docking/VibrateAlarm/Service/TcpManager.cs
+++ b/JiLinApp.Docking/VibrateAlarm/Service/TcpManager.cs
@@ -151,7 +151,7 @@ public class TcpManager
 
     #region Analysis
 
-    private int SendCmdInterval { get; } = 3000;
+    private int SendCmdInterval { get; } = 6000;
 
     private void AnalysisClientMessage(ref ClientMessage clientMsg)
     {
@@ -434,6 +434,7 @@ public class TcpManager
                 Request = msg
             };
             SendRequestTry(ref request);
+            Thread.Sleep(500);
         }
         return true;
     }
@@ -523,6 +524,7 @@ public class TcpManager
                 Request = msg
             };
             SendRequestTry(ref request);
+            Thread.Sleep(500);
         }
         return true;
     }
@@ -563,6 +565,7 @@ public class TcpManager
                 Request = msg
             };
             SendRequestTry(ref request);
+            Thread.Sleep(500);
         }
         return true;
     }
@@ -681,7 +684,7 @@ public class TcpManager
 
     private int SendTryTime { get; set; } = 3;
 
-    private int SendTryInterval { get; set; } = 300;
+    private int SendTryInterval { get; set; } = 500;
 
     private int ReqWaitTime { get; set; } = 3;
 
diff --git a/JiLinApp/Pages/Main/MainWindow.xaml.cs b/JiLinApp/Pages/Main/MainWindow.xaml.cs
index f8c2abf..64ebead 100644
--- a/JiLinApp/Pages/Main/MainWindow.xaml.cs
+++ b/JiLinApp/Pages/Main/MainWindow.xaml.cs
@@ -1,5 +1,4 @@
-using System;
-using System.Runtime.InteropServices;
+using System.Runtime.InteropServices;
 using System.Windows;
 using System.Windows.Controls.Primitives;
 
@@ -13,6 +12,7 @@ public partial class MainWindow : Window
     public MainWindow()
     {
         InitializeComponent();
+        WindowStartupLocation = WindowStartupLocation.CenterScreen;
     }
 
     #region ElementEvent
diff --git a/JiLinApp/Pages/PtzManage/Main.xaml.cs b/JiLinApp/Pages/PtzManage/Main.xaml.cs
index 36bbc3e..9b35f5c 100644
--- a/JiLinApp/Pages/PtzManage/Main.xaml.cs
+++ b/JiLinApp/Pages/PtzManage/Main.xaml.cs
@@ -336,8 +336,9 @@ public partial class Main : UserControl
             if (item == null) { LogUnit.Error(this, $"CameraLinkageInfo(sensorId:{sensorId}) not found."); return; }
             string cameraId = item.CameraId;
             ICameraSDK cameraSdk = GetCameraSdk(cameraId);
-            if (cameraSdk == null) { LogUnit.Error(this, $"CameraSdk(cameraId:{cameraId}) not found."); return; }
-            if (cameraSdk.ConnectSuccess()) { MessageBox.Show($"Camera:{cameraSdk.CameraInfo.Ip}, connect failed."); return; }
+            string cameraIp = cameraSdk.CameraInfo.Ip;
+            if (cameraSdk == null) { LogUnit.Error(this, $"CameraSdk({cameraId}-{cameraIp}) not found."); return; }
+            if (!cameraSdk.ConnectSuccess()) { LogUnit.Error(this, $"CameraSdk({cameraId}-{cameraIp}), connect failed."); return; }
             if (realPlay) Dispatcher.Invoke(() => ShowLiveVideo(cameraSdk));
 
             // TODO: 设计 PriorityQueue
@@ -360,7 +361,7 @@ public partial class Main : UserControl
     public void ShowLiveVideo(ICameraSDK sdk)
     {
         if (sdk == null) { LogUnit.Error(this, $"CameraSdk(cameraIp:{sdk.CameraInfo.Ip}) not found."); return; }
-        if (!sdk.ConnectSuccess()) { LogUnit.Error(this, $"CameraSdk(cameraIp:{sdk.CameraInfo.Ip}) connect failure."); return; }
+        if (!sdk.ConnectSuccess()) { LogUnit.Error(this, $"CameraSdk({sdk.CameraInfo.Id}-{sdk.CameraInfo.Ip}) connect failed."); return; }
         string cameraIp = sdk.CameraInfo.Ip;
         RealPlayDict.TryGetValue(cameraIp, out CameraRealPlay realPlay);
         if (realPlay == null || realPlay.IsClosed)