diff --git a/Netch/Controllers/MainController.cs b/Netch/Controllers/MainController.cs
index b0749e8b..3e48e62c 100644
--- a/Netch/Controllers/MainController.cs
+++ b/Netch/Controllers/MainController.cs
@@ -1,6 +1,7 @@
 using System;
 using System.IO;
 using System.Threading.Tasks;
+using Microsoft.VisualStudio.Threading;
 using Netch.Interfaces;
 using Netch.Models;
 using Netch.Utils;
diff --git a/Netch/Forms/MainForm.cs b/Netch/Forms/MainForm.cs
index cef69a8a..8b3026cd 100644
--- a/Netch/Forms/MainForm.cs
+++ b/Netch/Forms/MainForm.cs
@@ -12,6 +12,7 @@ using System.Windows.Forms;
 using Windows.Win32;
 using Windows.Win32.Foundation;
 using Windows.Win32.UI.WindowsAndMessaging;
+using Microsoft.VisualStudio.Threading;
 using Microsoft.Win32;
 using Netch.Controllers;
 using Netch.Enums;
@@ -518,7 +519,7 @@ namespace Netch.Forms
                 return;
             }
 
-            await Configuration.SaveAsync();
+            Configuration.SaveAsync().Forget();
 
             // 服务器、模式 需选择
             if (ServerComboBox.SelectedItem is not Server server)
diff --git a/Netch/Netch.csproj b/Netch/Netch.csproj
index c013981d..c79bf4c6 100644
--- a/Netch/Netch.csproj
+++ b/Netch/Netch.csproj
@@ -10,6 +10,7 @@
         <IsPackable>false</IsPackable>
         <LangVersion>latest</LangVersion>
         <Nullable>enable</Nullable>
+        <NoWarn>VSTHRD002;VSTHRD200;VSTHRD100;VSTHRD101;VSTHRD110;VSTHRD130</NoWarn>
         <EnableNETAnalyzers>false</EnableNETAnalyzers>
         <AnalysisMode>Default</AnalysisMode>
         <CodeAnalysisTreatWarningsAsErrors>true</CodeAnalysisTreatWarningsAsErrors>
@@ -39,6 +40,7 @@
         <PackageReference Include="HMBSbige.SingleInstance" Version="5.0.7" />
         <PackageReference Include="MaxMind.GeoIP2" Version="4.0.1" />
         <PackageReference Include="Microsoft.Diagnostics.Tracing.TraceEvent" Version="2.0.70" GeneratePathProperty="true" />
+        <PackageReference Include="Microsoft.VisualStudio.Threading" Version="16.10.56" />
         <PackageReference Include="Microsoft.Windows.CsWin32" Version="0.1.506-beta">
           <PrivateAssets>all</PrivateAssets>
           <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
diff --git a/Netch/Utils/Configuration.cs b/Netch/Utils/Configuration.cs
index 40bf23d4..32464e83 100644
--- a/Netch/Utils/Configuration.cs
+++ b/Netch/Utils/Configuration.cs
@@ -3,7 +3,9 @@ using System.IO;
 using System.Linq;
 using System.Text.Json;
 using System.Text.Json.Serialization;
+using System.Threading;
 using System.Threading.Tasks;
+using Microsoft.VisualStudio.Threading;
 using Netch.Models;
 using Serilog;
 
@@ -24,6 +26,8 @@ namespace Netch.Utils
 
         private const string BackupFileName = "settings.json.bak";
 
+        private static readonly AsyncReaderWriterLock _lock = new(null);
+
         private static readonly JsonSerializerOptions JsonSerializerOptions = Global.NewCustomJsonSerializerOptions();
 
         static Configuration()
@@ -93,8 +97,14 @@ namespace Netch.Utils
         /// </summary>
         public static async Task SaveAsync()
         {
+            if (_lock.IsWriteLockHeld)
+                return;
+
             try
             {
+                await using var _ = await _lock.WriteLockAsync();
+                Log.Verbose("Save Configuration");
+
                 if (!Directory.Exists(DataDirectoryFullName))
                     Directory.CreateDirectory(DataDirectoryFullName);
 
diff --git a/Netch/Utils/TplExtensions.cs b/Netch/Utils/TplExtensions.cs
deleted file mode 100644
index a11d6ddc..00000000
--- a/Netch/Utils/TplExtensions.cs
+++ /dev/null
@@ -1,11 +0,0 @@
-using System.Threading.Tasks;
-
-namespace Netch.Utils
-{
-    public static class TplExtensions
-    {
-        public static void Forget(this Task? task)
-        {
-        }
-    }
-}
\ No newline at end of file
diff --git a/Netch/Utils/WebUtil.cs b/Netch/Utils/WebUtil.cs
index 10e50238..458ffdea 100644
--- a/Netch/Utils/WebUtil.cs
+++ b/Netch/Utils/WebUtil.cs
@@ -3,6 +3,7 @@ using System.IO;
 using System.Net;
 using System.Text;
 using System.Threading.Tasks;
+using Microsoft.VisualStudio.Threading;
 
 namespace Netch.Utils
 {