diff --git a/CMakeLists.txt b/CMakeLists.txt
index ebc8905..8d3984f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -25,7 +25,6 @@ add_executable(${PROJECT_NAME} WIN32
         zjuconnectcontroller/zjuconnectcontroller.cpp
         portforwardingwindow/portforwardingwindow.cpp
         settingwindow/settingwindow.cpp
-        networkdetector/networkdetector.cpp
         utils/utils.cpp
         resource.qrc
         ${CMAKE_CURRENT_SOURCE_DIR}/resource/icon.rc
diff --git a/main.cpp b/main.cpp
index 9ccefd3..6949d0a 100644
--- a/main.cpp
+++ b/main.cpp
@@ -8,7 +8,7 @@ int main(int argc, char *argv[])
 {
     SingleApplication app(argc, argv);
     QApplication::setApplicationName("HITsz Connect for Windows");
-    QApplication::setApplicationVersion("1.1.3");
+    QApplication::setApplicationVersion("1.1.3-preview");
 
     MainWindow mainWindow;
 
diff --git a/mainwindow.cpp b/mainwindow.cpp
index 08e3bdc..95947e5 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -22,7 +22,6 @@ MainWindow::MainWindow(QWidget *parent) :
     zjuConnectController = nullptr;
 
     networkAccessManager = new QNetworkAccessManager(this);
-    networkDetector = new NetworkDetector();
 
     process = new QProcess(this);
     processForL2tp = new QProcess(this);
@@ -126,7 +125,7 @@ MainWindow::MainWindow(QWidget *parent) :
                     return;
                 }
 
-                if (mode == "RVPN" && isSystemProxySet)
+                if (isSystemProxySet)
                 {
                     ui->pushButton2->click();
                 }
@@ -155,91 +154,6 @@ MainWindow::MainWindow(QWidget *parent) :
             }
     );
 
-    // 检查更新
-    /*
-    QTimer::singleShot(10000, [&]()
-    {
-        QNetworkRequest request(QUrl("https://zjuconnect.myth.cx/version.json"));
-        request.setHeader(
-            QNetworkRequest::UserAgentHeader,
-            QApplication::applicationName() + " v" + QApplication::applicationVersion()
-        );
-        networkAccessManager->get(request);
-    });
-    */
-
-    connect(networkAccessManager, &QNetworkAccessManager::finished,
-            [&](QNetworkReply *reply)
-            {
-                if (reply->error() == QNetworkReply::NoError)
-                {
-                    QJsonDocument jsonDocument = QJsonDocument::fromJson(reply->readAll());
-                    QJsonObject jsonObject = jsonDocument.object();
-                    QString version = jsonObject["version"].toString();
-                    QString description = jsonObject["description"].toString();
-                    QString url = jsonObject["url"].toString();
-
-                    if (version != QApplication::applicationVersion())
-                    {
-                        disconnect(trayIcon, &QSystemTrayIcon::messageClicked, nullptr, nullptr);
-                        trayIcon->showMessage(
-                            "有新版本可用",
-                            "v" + version + "\n更新内容：" + description + "\n点击查看详情",
-                            QSystemTrayIcon::Information,
-                            10000
-                        );
-
-                        connect(trayIcon, &QSystemTrayIcon::messageClicked, this, [&, url]()
-                        {
-                            disconnect(trayIcon, &QSystemTrayIcon::messageClicked, nullptr, nullptr);
-
-                            QDesktopServices::openUrl(QUrl(url));
-
-                            show();
-                            setWindowState(Qt::WindowState::WindowActive);
-                        });
-                    }
-                }
-            });
-
-    // 网络检测
-    connect(networkDetector, &NetworkDetector::finished, this,
-            [&](const NetworkDetectResult &result)
-            {
-                networkDetectResult = result;
-
-                QString resultString = "";
-                resultString += "网络检测结果 | ";
-                if (result.isDefaultDnsAvailable)
-                {
-                    resultString += "默认 DNS 可用：是 | ";
-                }
-                else
-                {
-                    resultString += "默认 DNS 可用：否 | ";
-                }
-
-                if (result.isInternetAvailable)
-                {
-                    resultString += "互联网连接：是 | ";
-                }
-                else
-                {
-                    resultString += "互联网连接：否 | ";
-                }
-
-                if (result.isProxyEnabled)
-                {
-                    resultString += "是否启用代理：是";
-                }
-                else
-                {
-                    resultString += "是否启用代理：否";
-                }
-
-                ui->logPlainTextEdit->appendPlainText(resultString);
-            });
-
     connect(this, &MainWindow::SetModeFinished, this, [&]()
     {
         if (isFirstTimeSetMode)
@@ -280,7 +194,7 @@ void MainWindow::upgradeSettings()
     int configVersion = settings->value("Common/ConfigVersion", 1).toInt();
     if (configVersion > 2)
     {
-        addLog("警告：配置文件版本高于 2。请使用关闭当前 ZJU Connect 并运行新版本！");
+        addLog("警告：配置文件版本高于 2。请运行新版本！");
     }
     else if (configVersion == 2)
     {
@@ -293,7 +207,7 @@ void MainWindow::upgradeSettings()
                     QSettings::NativeFormat
                 );
                 autoStartSettings.setValue(
-                    "ZjuConnectForWindows",
+                    "HITszConnectForWindows",
                     QCoreApplication::applicationFilePath().replace('/', '\\')
                 );
             }
@@ -301,44 +215,6 @@ void MainWindow::upgradeSettings()
 
         return;
     }
-
-    if (settings->contains("EasyConnect/ServerAddress"))
-    {
-        settings->setValue("ZJUConnect/ServerAddress", settings->value("EasyConnect/ServerAddress"));
-        settings->remove("EasyConnect/ServerAddress");
-    }
-
-    if (settings->contains("EasyConnect/ServerPort"))
-    {
-        settings->setValue("ZJUConnect/ServerPort", settings->value("EasyConnect/ServerPort"));
-        settings->remove("EasyConnect/ServerPort");
-    }
-
-    if (settings->contains("EasyConnect/Username"))
-    {
-        settings->setValue("Common/Username", settings->value("EasyConnect/Username"));
-        settings->remove("EasyConnect/Username");
-
-    }
-
-    if (settings->contains("EasyConnect/Password"))
-    {
-        settings->setValue("Common/Password", settings->value("EasyConnect/Password"));
-        settings->remove("EasyConnect/Password");
-    }
-
-    if (settings->contains("GUI/AutoReconnect"))
-    {
-        settings->setValue("ZJUConnect/AutoReconnect", settings->value("GUI/AutoReconnect"));
-        settings->remove("GUI/AutoReconnect");
-    }
-
-    if (settings->contains("GUI/ReconnectTime"))
-    {
-        settings->setValue("ZJUConnect/ReconnectTime", settings->value("GUI/ReconnectTime"));
-        settings->remove("GUI/ReconnectTime");
-    }
-
     settings->sync();
 }
 
@@ -381,8 +257,6 @@ void MainWindow::cleanUpWhenQuit()
 
 MainWindow::~MainWindow()
 {
-    delete networkDetector;
-
     if (zjuConnectController != nullptr)
     {
         disconnect(zjuConnectController, &ZjuConnectController::finished, nullptr, nullptr);
diff --git a/mainwindow.h b/mainwindow.h
index a3e2ee4..ad2dbe3 100644
--- a/mainwindow.h
+++ b/mainwindow.h
@@ -10,7 +10,6 @@
 
 #include "portforwardingwindow/portforwardingwindow.h"
 #include "zjuconnectcontroller/zjuconnectcontroller.h"
-#include "networkdetector/networkdetector.h"
 #include "settingwindow/settingwindow.h"
 #include "QrCodeGenerator/QrCodeGenerator.h"
 
@@ -64,7 +63,6 @@ private:
     QAction *trayShowAction;
     QAction *trayCloseAction;
     ZjuConnectController *zjuConnectController;
-    NetworkDetector *networkDetector;
     QNetworkAccessManager *networkAccessManager;
     QSettings *settings;
     QProcess *process;
@@ -79,7 +77,6 @@ private:
     SettingWindow *settingWindow;
 
     QString mode;
-    NetworkDetectResult networkDetectResult;
 
     bool isFirstTimeSetMode;
 
diff --git a/mainwindow.ui b/mainwindow.ui
index 3bd1c9b..cf409ce 100644
--- a/mainwindow.ui
+++ b/mainwindow.ui
@@ -139,7 +139,8 @@ Windows Version: Arch Linux
     <item row="2" column="1" colspan="3">
      <widget class="QLabel" name="accountLabel">
       <property name="text">
-       <string>提示：左上角“功能”-&gt;“设置”里可以填写账号信息</string>
+       <string>提示：左上角“功能”-&gt;“设置”里可以填写账号信息
+可以使用 TUN 模式解决部分软件的代理问题</string>
       </property>
      </widget>
     </item>
@@ -206,6 +207,10 @@ Windows Version: Arch Linux
   </action>
  </widget>
  <tabstops>
+  <tabstop>pushButton1</tabstop>
+  <tabstop>pushButton2</tabstop>
+  <tabstop>tunCheckBox</tabstop>
+  <tabstop>copyLogPushButton</tabstop>
   <tabstop>logPlainTextEdit</tabstop>
  </tabstops>
  <resources/>
diff --git a/networkdetector/networkdetector.cpp b/networkdetector/networkdetector.cpp
deleted file mode 100644
index 86675d2..0000000
--- a/networkdetector/networkdetector.cpp
+++ /dev/null
@@ -1,180 +0,0 @@
-#include <QMessageBox>
-#include "networkdetector.h"
-#include "../utils/utils.h"
-
-NetworkDetector::NetworkDetector()
-{
-    process = new QProcess(this);
-}
-
-void NetworkDetector::start()
-{
-    result.isDefaultDnsAvailable = false;
-    result.isZjuNet = false;
-    result.isZjuDnsCorrect = false;
-    result.isZjuWlan = false;
-    result.isZjuWlanSecure = false;
-    result.isZjuLan = false;
-    result.zjuLanGateway = "";
-    result.isInternetAvailable = false;
-    result.isProxyEnabled = false;
-
-    disconnect(process, &QProcess::finished, this, nullptr);
-    connect(process, &QProcess::finished, this, [&]()
-    {
-        disconnect(process, &QProcess::finished, this, nullptr);
-        connect(process, &QProcess::finished, this, [&]()
-        {
-            QString output = Utils::ConsoleOutputToQString(process->readAllStandardOutput());
-            if (!output.contains("timed out"))
-            {
-                result.isDefaultDnsAvailable = true;
-
-                if (output.contains("Address:  10."))
-                {
-                    result.isZjuNet = true;
-                    result.isZjuDnsCorrect = true;
-                    checkZjuWlan();
-                    return;
-                }
-            }
-            else
-            {
-                result.isDefaultDnsAvailable = false;
-            }
-
-            disconnect(process, &QProcess::finished, this, nullptr);
-            connect(process, &QProcess::finished, this, [&]()
-            {
-                QString output = Utils::ConsoleOutputToQString(process->readAllStandardOutput());
-                if (!output.contains("timed out"))
-                {
-                    result.isZjuNet = true;
-                    checkZjuWlan();
-                }
-
-                checkInternet();
-            });
-
-            process->start("nslookup", QStringList() << "dns1.zju.edu.cn" << "10.10.0.21");
-        });
-
-        process->start("nslookup", QStringList() << "dns1.zju.edu.cn");
-    });
-
-    process->start("ipconfig", QStringList() << "/flushdns");
-}
-
-void NetworkDetector::checkZjuWlan()
-{
-    disconnect(process, &QProcess::finished, this, nullptr);
-    connect(process, &QProcess::finished, this, [&]()
-    {
-        QString output = Utils::ConsoleOutputToQString(process->readAllStandardOutput());
-        if (output.contains("ZJUWLAN"))
-        {
-            if (output.contains("ZJUWLAN-Secure"))
-            {
-                result.isZjuWlanSecure = true;
-            }
-            else
-            {
-                result.isZjuWlan = true;
-            }
-
-            checkZjuLan();
-            return;
-        }
-
-        checkZjuLan();
-    });
-
-    process->start("netsh", QStringList() << "wlan" << "show" << "interfaces");
-}
-
-void NetworkDetector::checkZjuLan()
-{
-    disconnect(process, &QProcess::finished, this, nullptr);
-    connect(process, &QProcess::finished, this, [&]()
-    {
-        QString output = Utils::ConsoleOutputToQString(process->readAllStandardOutput());
-        QString line;
-        QTextStream stream(&output);
-
-        bool waitForIp = false;
-        bool waitForGateway = false;
-        QString ip;
-
-        while (!stream.atEnd())
-        {
-            line = stream.readLine();
-            if (line.contains("以太网") || line.contains("Ethernet"))
-            {
-                waitForIp = true;
-            }
-            else if ((line.contains("IP 地址") || line.contains("IP Address")) && waitForIp)
-            {
-                ip = line.split(":").at(1).trimmed();
-                if (ip.startsWith("10."))
-                {
-                    waitForGateway = true;
-                }
-
-                waitForIp = false;
-            }
-            else if ((line.contains("默认网关") || line.contains("Default Gateway")) && waitForGateway)
-            {
-                result.zjuLanGateway = line.split(":").at(1).trimmed();
-
-                if (result.zjuLanGateway.startsWith("10."))
-                {
-                    result.isZjuLan = true;
-                    checkInternet();
-                    return;
-                }
-
-                result.zjuLanGateway = "";
-            }
-            else if ((line.contains("接口 \"") || line.contains("interface \"")) && (waitForIp || waitForGateway))
-            {
-                waitForIp = false;
-                waitForGateway = false;
-            }
-        }
-
-        checkInternet();
-    });
-
-    process->start("netsh", QStringList() << "interface" << "ipv4" << "show" << "addresses");
-}
-
-void NetworkDetector::checkInternet()
-{
-    disconnect(process, &QProcess::finished, this, nullptr);
-    connect(process, &QProcess::finished, this, [&]()
-    {
-        QString output = Utils::ConsoleOutputToQString(process->readAllStandardOutput());
-        if (output.contains("(0%") && !output.contains("unreachable") && !output.contains("无法"))
-        {
-            result.isInternetAvailable = true;
-            checkProxy();
-            return;
-        }
-
-        checkProxy();
-    });
-
-    process->start("ping", QStringList() << "223.5.5.5" << "-n" << "1");
-}
-
-void NetworkDetector::checkProxy()
-{
-    QSettings proxySettings(
-        R"(HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings)",
-        QSettings::NativeFormat
-    );
-
-    result.isProxyEnabled = proxySettings.value("ProxyEnable", 0).toInt() == 1;
-
-    emit finished(result);
-}
diff --git a/networkdetector/networkdetector.h b/networkdetector/networkdetector.h
deleted file mode 100644
index adb01f5..0000000
--- a/networkdetector/networkdetector.h
+++ /dev/null
@@ -1,47 +0,0 @@
-#ifndef NETWORKDETECTOR_H
-#define NETWORKDETECTOR_H
-
-#include <QtCore>
-
-struct NetworkDetectResult
-{
-    bool isDefaultDnsAvailable = false;
-    bool isZjuNet = false;
-    bool isZjuDnsCorrect = false;
-    bool isZjuWlan = false;
-    bool isZjuWlanSecure = false;
-    bool isZjuLan = false;
-    QString zjuLanGateway = "";
-    bool isInternetAvailable = false;
-    bool isProxyEnabled = false;
-};
-
-class NetworkDetector : public QObject
-{
-Q_OBJECT
-
-public:
-    NetworkDetector();
-
-    void start();
-
-private:
-    void checkZjuWlan();
-
-    void checkZjuLan();
-
-    void checkInternet();
-
-    void checkProxy();
-
-signals:
-
-    void finished(NetworkDetectResult result);
-
-private:
-    QProcess *process;
-    NetworkDetectResult result;
-};
-
-
-#endif //NETWORKDETECTOR_H
diff --git a/settingwindow/settingwindow.cpp b/settingwindow/settingwindow.cpp
index 83fe56c..9ee630b 100644
--- a/settingwindow/settingwindow.cpp
+++ b/settingwindow/settingwindow.cpp
@@ -14,10 +14,6 @@ SettingWindow::SettingWindow(QWidget *parent, QSettings *inputSettings) :
 
     this->settings = inputSettings;
 
-    setWindowIcon(QIcon(QPixmap(":/resource/icon.png").scaled(
-        512, 512, Qt::KeepAspectRatio, Qt::SmoothTransformation
-    )));
-
     setWindowFlag(Qt::Window);
     setWindowModality(Qt::WindowModal);
     setAttribute(Qt::WA_DeleteOnClose);
@@ -111,7 +107,7 @@ SettingWindow::SettingWindow(QWidget *parent, QSettings *inputSettings) :
                         QSettings::NativeFormat
                     );
                     autoStartSettings.setValue(
-                        "ZjuConnectForWindows",
+                        "HITszConnectForWindows",
                         QCoreApplication::applicationFilePath().replace('/', '\\')
                     );
                 }
@@ -121,17 +117,13 @@ SettingWindow::SettingWindow(QWidget *parent, QSettings *inputSettings) :
                         R"(HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run)",
                         QSettings::NativeFormat
                     );
-                    autoStartSettings.remove("ZjuConnectForWindows");
+                    autoStartSettings.remove("HITszConnectForWindows");
                 }
 
-                ui->cancelPushButton->setText("关闭");
-            });
-
-    connect(ui->cancelPushButton, &QPushButton::clicked,
-            [&]()
-            {
                 close();
             });
+
+    connect(ui->cancelPushButton, &QPushButton::clicked, [&]()  { close(); });
 }
 
 SettingWindow::~SettingWindow()
diff --git a/settingwindow/settingwindow.ui b/settingwindow/settingwindow.ui
index 58a068a..1e4156b 100644
--- a/settingwindow/settingwindow.ui
+++ b/settingwindow/settingwindow.ui
@@ -27,7 +27,7 @@
    <item row="0" column="0" colspan="4">
     <widget class="QTabWidget" name="tabWidget">
      <property name="currentIndex">
-      <number>1</number>
+      <number>0</number>
      </property>
      <widget class="QWidget" name="commonTab">
       <attribute name="title">
@@ -385,6 +385,13 @@
      </widget>
     </widget>
    </item>
+   <item row="1" column="1">
+    <widget class="QPushButton" name="applyPushButton">
+     <property name="text">
+      <string>确定</string>
+     </property>
+    </widget>
+   </item>
    <item row="1" column="0">
     <spacer name="horizontalSpacer">
      <property name="orientation">
@@ -398,15 +405,30 @@
      </property>
     </spacer>
    </item>
-   <item row="1" column="1">
-    <widget class="QPushButton" name="applyPushButton">
-     <property name="text">
-      <string>应用</string>
-     </property>
-    </widget>
-   </item>
   </layout>
  </widget>
+ <tabstops>
+  <tabstop>usernameLineEdit</tabstop>
+  <tabstop>passwordLineEdit</tabstop>
+  <tabstop>autoStartComboBox</tabstop>
+  <tabstop>connectAfterStartComboBox</tabstop>
+  <tabstop>tabWidget</tabstop>
+  <tabstop>applyPushButton</tabstop>
+  <tabstop>cancelPushButton</tabstop>
+  <tabstop>serverAddressLineEdit</tabstop>
+  <tabstop>serverPortSpinBox</tabstop>
+  <tabstop>socks5PortSpinBox</tabstop>
+  <tabstop>httpPortSpinBox</tabstop>
+  <tabstop>reconnectTimeSpinBox</tabstop>
+  <tabstop>multiLineCheckBox</tabstop>
+  <tabstop>proxyAllCheckBox</tabstop>
+  <tabstop>autoReconnectCheckBox</tabstop>
+  <tabstop>autoSetProxyCheckBox</tabstop>
+  <tabstop>portForwardingPushButton</tabstop>
+  <tabstop>debugCheckBox</tabstop>
+  <tabstop>routeCheckBox</tabstop>
+  <tabstop>dnsLineEdit</tabstop>
+ </tabstops>
  <resources/>
  <connections/>
 </ui>
diff --git a/zjuconnectcontroller/zjuconnectcontroller.cpp b/zjuconnectcontroller/zjuconnectcontroller.cpp
index 0498d98..9207c90 100644
--- a/zjuconnectcontroller/zjuconnectcontroller.cpp
+++ b/zjuconnectcontroller/zjuconnectcontroller.cpp
@@ -131,11 +131,6 @@ void ZjuConnectController::start(
         args.append(udpPortForwarding);
     }
 
-    QString cmd = program;
-    for (const auto& arg : args)
-        cmd += " " + arg;
-    emit outputRead(cmd);
-
     zjuConnectProcess->start(program, args);
     zjuConnectProcess->waitForStarted();
 }
diff --git a/zjuconnectmode.cpp b/zjuconnectmode.cpp
index cdba177..c8bd6ea 100644
--- a/zjuconnectmode.cpp
+++ b/zjuconnectmode.cpp
@@ -10,7 +10,6 @@ void MainWindow::setModeToZjuConnect()
 
     clearLog();
 
-    networkDetector->start();
     ui->tunCheckBox->show();
 
     if (settings->contains("ZJUConnect/TunMode"))
@@ -29,8 +28,6 @@ void MainWindow::setModeToZjuConnect()
     ui->pushButton2->setText("设置系统代理");
     ui->pushButton2->hide();
 
-    addLog("工作模式设置为：RVPN");
-
     // 连接服务器
     connect(zjuConnectController, &ZjuConnectController::outputRead, this, [&](const QString &output)
     {
@@ -70,8 +67,8 @@ void MainWindow::setModeToZjuConnect()
             return;
         }
 
-        addLog("RVPN 断开！");
-        showNotification("RVPN", "RVPN 断开！", QSystemTrayIcon::MessageIcon::Warning);
+        addLog("VPN 断开！");
+        showNotification("VPN", "VPN 断开！", QSystemTrayIcon::MessageIcon::Warning);
         isZjuConnectLinked = false;
         ui->pushButton1->setText("连接服务器");
 
@@ -159,7 +156,11 @@ void MainWindow::setModeToZjuConnect()
             {
                 if (!isSystemProxySet)
                 {
-                    if (networkDetectResult.isProxyEnabled)
+                    QSettings proxySettings(
+                        R"(HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings)",
+                        QSettings::NativeFormat
+                    );
+                    if (proxySettings.value("ProxyEnable", 0).toInt() == 1)
                     {
                         QMessageBox messageBox(this);
                         messageBox.setWindowTitle("警告");