From e0c35c5ee3b20e02e984618ecbebac0a1246e7cb Mon Sep 17 00:00:00 2001
From: Tunglies <77394545+Tunglies@users.noreply.github.com>
Date: Thu, 15 Jan 2026 17:40:06 +0800
Subject: [PATCH] fix: unexpected port in use error when change ports

---
 Changelog.md                                  |  1 +
 .../setting/mods/clash-port-viewer.tsx        | 19 ++++++++++++++++---
 2 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/Changelog.md b/Changelog.md
index a1cefaf7a..68685cb46 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -32,6 +32,7 @@
 - 修复 Windows 下系统主题同步问题
 - 修复 URL Schemes 无法正常导入
 - 修复 Linux 下无法安装 TUN 服务
+- 修复可能的端口被占用误报
 
 <details>
 <summary><strong> ✨ 新增功能 </strong></summary>
diff --git a/src/components/setting/mods/clash-port-viewer.tsx b/src/components/setting/mods/clash-port-viewer.tsx
index 714ae1001..bb47861c2 100644
--- a/src/components/setting/mods/clash-port-viewer.tsx
+++ b/src/components/setting/mods/clash-port-viewer.tsx
@@ -112,6 +112,7 @@ export const ClashPortViewer = forwardRef<ClashPortViewerRef>((_, ref) => {
     close: () => setOpen(false),
   }));
 
+  // TODO 减少代码复杂度，性能开支
   const onSave = useLockFn(async () => {
     // 端口冲突检测
     const portList = [
@@ -140,14 +141,26 @@ export const ClashPortViewer = forwardRef<ClashPortViewerRef>((_, ref) => {
       return;
     }
 
-    for (const port of portList) {
+    const original = originalPortsRef.current;
+    const changedPorts: number[] = [];
+
+    if (mixedPort !== original?.mixedPort) changedPorts.push(mixedPort);
+    if (socksEnabled && socksPort !== original?.socksPort)
+      changedPorts.push(socksPort);
+    if (httpEnabled && httpPort !== original?.httpPort)
+      changedPorts.push(httpPort);
+    if (redirEnabled && redirPort !== original?.redirPort)
+      changedPorts.push(redirPort);
+    if (tproxyEnabled && tproxyPort !== original?.tproxyPort)
+      changedPorts.push(tproxyPort);
+
+    for (const port of changedPorts) {
       try {
         const inUse = await isPortInUse(port);
         if (inUse) {
           showNotice.error("settings.modals.clashPort.messages.portInUse", {
             port,
           });
-          const original = originalPortsRef.current;
           if (original) {
             setMixedPort(original.mixedPort);
             setSocksPort(original.socksPort);
@@ -201,7 +214,7 @@ export const ClashPortViewer = forwardRef<ClashPortViewerRef>((_, ref) => {
     };
 
     // 提交保存请求
-    await saveSettings({ clashConfig, vergeConfig });
+    saveSettings({ clashConfig, vergeConfig });
   });
 
   return (