diff --git a/v2rayN/ServiceLib/Manager/ActionPrecheckManager.cs b/v2rayN/ServiceLib/Manager/ActionPrecheckManager.cs
index 73a1020a..52de0cd3 100644
--- a/v2rayN/ServiceLib/Manager/ActionPrecheckManager.cs
+++ b/v2rayN/ServiceLib/Manager/ActionPrecheckManager.cs
@@ -193,6 +193,19 @@ public class ActionPrecheckManager
             }
         }
 
+        // ws with tls, tls alpn should contain "http/1.1" in xray core
+        // rfc6455
+        // https://github.com/XTLS/Xray-core/blob/81f8f398c7b2b845853b1e85087c6122acc6db0b/transport/internet/tls/tls.go#L95-L116
+        if (item.Network == nameof(ETransport.ws)
+            && item.StreamSecurity == Global.StreamSecurity)
+        {
+            var alpnList = Utils.String2List(item.Alpn) ?? [];
+            if (alpnList.Count > 0 && !alpnList.Contains("http/1.1"))
+            {
+                errors.Add(ResUI.AlpnMustContainHttp11ForWsTls);
+            }
+        }
+
         return errors;
     }
 
diff --git a/v2rayN/ServiceLib/Resx/ResUI.Designer.cs b/v2rayN/ServiceLib/Resx/ResUI.Designer.cs
index 64ca0292..a3b75407 100644
--- a/v2rayN/ServiceLib/Resx/ResUI.Designer.cs
+++ b/v2rayN/ServiceLib/Resx/ResUI.Designer.cs
@@ -19,7 +19,7 @@ namespace ServiceLib.Resx {
     // 类通过类似于 ResGen 或 Visual Studio 的工具自动生成的。
     // 若要添加或移除成员，请编辑 .ResX 文件，然后重新运行 ResGen
     // (以 /str 作为命令选项)，或重新生成 VS 项目。
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "17.0.0.0")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "18.0.0.0")]
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
     public class ResUI {
@@ -78,6 +78,15 @@ namespace ServiceLib.Resx {
             }
         }
         
+        /// <summary>
+        ///   查找类似 ALPN must contain &apos;http/1.1&apos; when using WebSocket with TLS. 的本地化字符串。
+        /// </summary>
+        public static string AlpnMustContainHttp11ForWsTls {
+            get {
+                return ResourceManager.GetString("AlpnMustContainHttp11ForWsTls", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   查找类似 Export share link to clipboard successfully 的本地化字符串。
         /// </summary>
diff --git a/v2rayN/ServiceLib/Resx/ResUI.fa-Ir.resx b/v2rayN/ServiceLib/Resx/ResUI.fa-Ir.resx
index 4f5467b3..9571ecd9 100644
--- a/v2rayN/ServiceLib/Resx/ResUI.fa-Ir.resx
+++ b/v2rayN/ServiceLib/Resx/ResUI.fa-Ir.resx
@@ -1641,4 +1641,7 @@ The "Get Certificate" action may fail if a self-signed certificate is used or if
   <data name="menuServerList2" xml:space="preserve">
     <value>Configuration Item 2, Select and add from self-built</value>
   </data>
+  <data name="AlpnMustContainHttp11ForWsTls" xml:space="preserve">
+    <value>ALPN must contain 'http/1.1' when using WebSocket with TLS.</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/v2rayN/ServiceLib/Resx/ResUI.fr.resx b/v2rayN/ServiceLib/Resx/ResUI.fr.resx
index a4fbf84b..e17f56b9 100644
--- a/v2rayN/ServiceLib/Resx/ResUI.fr.resx
+++ b/v2rayN/ServiceLib/Resx/ResUI.fr.resx
@@ -1638,4 +1638,7 @@ Si un certificat auto-signé est utilisé ou si le système contient une CA non
   <data name="menuServerList2" xml:space="preserve">
     <value>Configuration Item 2, Select and add from self-built</value>
   </data>
+  <data name="AlpnMustContainHttp11ForWsTls" xml:space="preserve">
+    <value>ALPN must contain 'http/1.1' when using WebSocket with TLS.</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/v2rayN/ServiceLib/Resx/ResUI.hu.resx b/v2rayN/ServiceLib/Resx/ResUI.hu.resx
index 0841b111..c7f6d51c 100644
--- a/v2rayN/ServiceLib/Resx/ResUI.hu.resx
+++ b/v2rayN/ServiceLib/Resx/ResUI.hu.resx
@@ -1641,4 +1641,7 @@ The "Get Certificate" action may fail if a self-signed certificate is used or if
   <data name="menuServerList2" xml:space="preserve">
     <value>Configuration Item 2, Select and add from self-built</value>
   </data>
+  <data name="AlpnMustContainHttp11ForWsTls" xml:space="preserve">
+    <value>ALPN must contain 'http/1.1' when using WebSocket with TLS.</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/v2rayN/ServiceLib/Resx/ResUI.resx b/v2rayN/ServiceLib/Resx/ResUI.resx
index ceb7c91e..ce09f3f6 100644
--- a/v2rayN/ServiceLib/Resx/ResUI.resx
+++ b/v2rayN/ServiceLib/Resx/ResUI.resx
@@ -1641,4 +1641,7 @@ The "Get Certificate" action may fail if a self-signed certificate is used or if
   <data name="menuServerList2" xml:space="preserve">
     <value>Configuration Item 2, Select and add from self-built</value>
   </data>
+  <data name="AlpnMustContainHttp11ForWsTls" xml:space="preserve">
+    <value>ALPN must contain 'http/1.1' when using WebSocket with TLS.</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/v2rayN/ServiceLib/Resx/ResUI.ru.resx b/v2rayN/ServiceLib/Resx/ResUI.ru.resx
index 33102733..d502ff35 100644
--- a/v2rayN/ServiceLib/Resx/ResUI.ru.resx
+++ b/v2rayN/ServiceLib/Resx/ResUI.ru.resx
@@ -1641,4 +1641,7 @@ The "Get Certificate" action may fail if a self-signed certificate is used or if
   <data name="menuServerList2" xml:space="preserve">
     <value>Configuration Item 2, Select and add from self-built</value>
   </data>
+  <data name="AlpnMustContainHttp11ForWsTls" xml:space="preserve">
+    <value>ALPN must contain 'http/1.1' when using WebSocket with TLS.</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/v2rayN/ServiceLib/Resx/ResUI.zh-Hans.resx b/v2rayN/ServiceLib/Resx/ResUI.zh-Hans.resx
index e53c4203..a5673430 100644
--- a/v2rayN/ServiceLib/Resx/ResUI.zh-Hans.resx
+++ b/v2rayN/ServiceLib/Resx/ResUI.zh-Hans.resx
@@ -1638,4 +1638,7 @@
   <data name="menuServerList2" xml:space="preserve">
     <value>子配置项二，从自建中选择添加</value>
   </data>
+  <data name="AlpnMustContainHttp11ForWsTls" xml:space="preserve">
+    <value>使用 WebSocket+TLS 时，ALPN 必须包含 'http/1.1'。</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/v2rayN/ServiceLib/Resx/ResUI.zh-Hant.resx b/v2rayN/ServiceLib/Resx/ResUI.zh-Hant.resx
index 92421199..1a4ec70c 100644
--- a/v2rayN/ServiceLib/Resx/ResUI.zh-Hant.resx
+++ b/v2rayN/ServiceLib/Resx/ResUI.zh-Hant.resx
@@ -1638,4 +1638,7 @@
   <data name="menuServerList2" xml:space="preserve">
     <value>子配置項二，從自建中選擇新增</value>
   </data>
+  <data name="AlpnMustContainHttp11ForWsTls" xml:space="preserve">
+    <value>ALPN must contain 'http/1.1' when using WebSocket with TLS.</value>
+  </data>
 </root>
\ No newline at end of file