diff --git a/UPDATELOG.md b/UPDATELOG.md
index 2196c678..920b4f83 100644
--- a/UPDATELOG.md
+++ b/UPDATELOG.md
@@ -9,10 +9,12 @@
 
 ### 2.0.2相对于2.0.1改进了：
 
+- 只允许单例运行，防止多次启动造成的 bug
+- Tun模式默认是还用内核推荐的 mixed 堆栈
 - 改进了默认窗口大小（启动软件窗口不会那么小了）
-- 改进了WebDAV备份超时时间机制
+- 改进了 WebDAV 备份超时时间机制
 - 测试菜单添加滚动条
-- 改进和修正了Tun模式下对设置的覆盖逻辑
+- 改进和修正了 Tun 模式下对设置的覆盖逻辑
 - 修复了打开配置出错的问题
 - 修复了配置文件无法拖拽添加的问题
 - 改善了浅色模式的对比度
diff --git a/src-tauri/src/config/clash.rs b/src-tauri/src/config/clash.rs
index 87a7d2b1..71ef53bd 100644
--- a/src-tauri/src/config/clash.rs
+++ b/src-tauri/src/config/clash.rs
@@ -33,7 +33,7 @@ impl IClashTemp {
         let mut map = Mapping::new();
         let mut tun = Mapping::new();
         tun.insert("enable".into(), false.into());
-        tun.insert("stack".into(), "gvisor".into());
+        tun.insert("stack".into(), "mixed".into());
         tun.insert("auto-route".into(), true.into());
         tun.insert("strict-route".into(), false.into());
         tun.insert("auto-detect-interface".into(), true.into());
diff --git a/src/components/setting/mods/tun-viewer.tsx b/src/components/setting/mods/tun-viewer.tsx
index b1a65e90..699092e7 100644
--- a/src/components/setting/mods/tun-viewer.tsx
+++ b/src/components/setting/mods/tun-viewer.tsx
@@ -22,7 +22,7 @@ export const TunViewer = forwardRef<DialogRef>((props, ref) => {
 
   const [open, setOpen] = useState(false);
   const [values, setValues] = useState({
-    stack: "gvisor",
+    stack: "mixed",
     device: "Mihomo",
     autoRoute: true,
     autoDetectInterface: true,
@@ -35,7 +35,7 @@ export const TunViewer = forwardRef<DialogRef>((props, ref) => {
     open: () => {
       setOpen(true);
       setValues({
-        stack: clash?.tun.stack ?? "gvisor",
+        stack: clash?.tun.stack ?? "mixed",
         device: clash?.tun.device ?? "Mihomo",
         autoRoute: clash?.tun["auto-route"] ?? true,
         autoDetectInterface: clash?.tun["auto-detect-interface"] ?? true,
@@ -64,7 +64,7 @@ export const TunViewer = forwardRef<DialogRef>((props, ref) => {
           ...(old! || {}),
           tun,
         }),
-        false
+        false,
       );
       try {
         await enhanceProfiles();
@@ -89,7 +89,7 @@ export const TunViewer = forwardRef<DialogRef>((props, ref) => {
             size="small"
             onClick={async () => {
               let tun = {
-                stack: "gvisor",
+                stack: "mixed",
                 device: "Mihomo",
                 "auto-route": true,
                 "auto-detect-interface": true,
@@ -98,7 +98,7 @@ export const TunViewer = forwardRef<DialogRef>((props, ref) => {
                 mtu: 1500,
               };
               setValues({
-                stack: "gvisor",
+                stack: "mixed",
                 device: "Mihomo",
                 autoRoute: true,
                 autoDetectInterface: true,
@@ -112,7 +112,7 @@ export const TunViewer = forwardRef<DialogRef>((props, ref) => {
                   ...(old! || {}),
                   tun,
                 }),
-                false
+                false,
               );
             }}
           >