diff --git a/Netch/Models/Mode.cs b/Netch/Models/Mode.cs
index 9f081164..b17c2c98 100644
--- a/Netch/Models/Mode.cs
+++ b/Netch/Models/Mode.cs
@@ -33,6 +33,12 @@ namespace Netch.Models
         /// </summary>
         public int Type = 0;
 
+        public bool SupportSocks5Auth => Type switch
+        {
+            0 => false,
+            _ => false
+        };
+
         /// <summary>
         ///    绕过中国（0. 不绕过 1. 绕过）
         /// </summary>
@@ -67,7 +73,8 @@ namespace Netch.Models
                         if (mode == null)
                         {
                             Logging.Warning($"{relativePath} file included in {Remark} not found");
-                        }else if (mode == this)
+                        }
+                        else if (mode == this)
                         {
                             Logging.Warning("Can't self-reference");
                         }
diff --git a/Netch/Servers/Socks5/S5Controller.cs b/Netch/Servers/Socks5/S5Controller.cs
index 3b56b234..44ce714f 100644
--- a/Netch/Servers/Socks5/S5Controller.cs
+++ b/Netch/Servers/Socks5/S5Controller.cs
@@ -12,7 +12,8 @@ namespace Netch.Servers.Socks5
 
         public bool Start(Server s, Mode mode)
         {
-            if (((Socks5) s).Auth())
+            var server = (Socks5) s;
+            if (server.Auth() && !mode.SupportSocks5Auth)
             {
                 File.WriteAllText("data\\last.json", V2rayConfigUtils.GenerateClientConfig(s, mode));
                 if (StartInstanceAuto("-config ..\\data\\last.json"))