diff --git a/QtScrcpy/devicemanage/devicemanage.cpp b/QtScrcpy/devicemanage/devicemanage.cpp
index de2d2fa..d197b64 100644
--- a/QtScrcpy/devicemanage/devicemanage.cpp
+++ b/QtScrcpy/devicemanage/devicemanage.cpp
@@ -27,6 +27,8 @@ bool DeviceManage::connectDevice(Device::DeviceParams params)
         qInfo("over the maximum number of connections");
         return false;
     }
+    /*
+    // 没有必要分配端口，都用27183即可，连接建立以后server会释放监听的
     quint16 port = 0;
     if (params.useReverse) {
          port = getFreePort();
@@ -34,9 +36,11 @@ bool DeviceManage::connectDevice(Device::DeviceParams params)
             qInfo("no port available, automatically switch to forward");
             params.useReverse = false;
         } else {
+            params.localPort = port;
             qInfo("free port %d", port);
         }
     }
+    */
     Device *device = new Device(params);
     connect(device, &Device::deviceDisconnect, this, &DeviceManage::onDeviceDisconnect);
     m_devices[params.serial] = device;
@@ -65,10 +69,10 @@ void DeviceManage::onDeviceDisconnect(QString serial)
 
 quint16 DeviceManage::getFreePort()
 {
-    quint16 port = m_localPortStart;
-    QMapIterator<QString, QPointer<Device>> i(m_devices);
+    quint16 port = m_localPortStart;    
     while (port < m_localPortStart + DM_MAX_DEVICES_NUM) {
         bool used = false;
+        QMapIterator<QString, QPointer<Device>> i(m_devices);
         while (i.hasNext()) {
             i.next();
             auto device = i.value();
@@ -82,6 +86,7 @@ quint16 DeviceManage::getFreePort()
         if (!used) {
             return port;
         }
+        port++;
     }
     return 0;
 }
diff --git a/TODO.md b/TODO.md
index a39d676..f1c3418 100644
--- a/TODO.md
+++ b/TODO.md
@@ -6,7 +6,12 @@
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 3. [�����߳�ͳ��֡��](https://github.com/Genymobile/scrcpy/commit/e2a272bf99ecf48fcb050177113f903b3fb323c4)
 4. ui�ṩshow touch����
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