diff --git a/account.cpp b/account.cpp
index c0da6fb..b17ff97 100644
--- a/account.cpp
+++ b/account.cpp
@@ -49,8 +49,3 @@ NostaleAuth *Account::getAuthenticator() const
 {
     return authenticator;
 }
-
-void Account::setGfVersion(QString ver)
-{
-    authenticator->setGfVersion(ver);
-}
diff --git a/account.h b/account.h
index d2ac3e1..5c8ee3f 100644
--- a/account.h
+++ b/account.h
@@ -28,8 +28,6 @@ class Account : public QObject
 
     NostaleAuth *getAuthenticator() const;
 
-    void setGfVersion(QString ver);
-
 private:
     QString gameforgeAccountUsername;
     NostaleAuth* authenticator;
diff --git a/mainwindow.cpp b/mainwindow.cpp
index 8059ba5..44d549c 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -22,7 +22,6 @@ MainWindow::MainWindow(QWidget *parent)
     connect(settingsDialog, &SettingsDialog::autoLoginStateChanged, ui->characterLabel, &QLabel::setEnabled);
     connect(settingsDialog, &SettingsDialog::profilesPathSelected, this, &MainWindow::loadAccountProfiles);
     connect(settingsDialog, &SettingsDialog::identityPathSelected, this, &MainWindow::loadIdentity);
-    connect(settingsDialog, &SettingsDialog::gfVersionChanged, this, &MainWindow::updateGfVersion);
 
     loadSettings();
 }
@@ -37,7 +36,6 @@ void MainWindow::on_openAccountsButton_clicked()
     if (ui->accountsListWidget->currentRow() < 0) return;
     if (!checkGameClientPath()) return;
     if (!checkIdentityPath()) return;
-    if (!checkGfVersion()) return;
 
     int openInterval = settingsDialog->getOpenInterval();
     QString gameforgeAccountUsername = ui->gameforgeAccountComboBox->currentText();
@@ -115,7 +113,6 @@ void MainWindow::loadSettings()
     settingsDialog->setServer(settings.value("server", 0).toInt());
     ui->channelComboBox->setCurrentIndex(settings.value("channel", 0).toInt());
     ui->characterComboBox->setCurrentIndex(settings.value("character", 0).toInt());
-    settingsDialog->setGfClientVersion(settings.value("gfver").toString());
 
     settings.endGroup();
 
@@ -149,7 +146,6 @@ void MainWindow::saveSettings()
     settings.setValue("server", settingsDialog->getServer());
     settings.setValue("channel", ui->channelComboBox->currentIndex());
     settings.setValue("character", ui->characterComboBox->currentIndex());
-    settings.setValue("gfver", settingsDialog->getGfClientVersion());
     settings.endGroup();
 
     settings.beginGroup("Gameforge Accounts");
@@ -302,7 +298,7 @@ void MainWindow::displayProfiles(const QString &gameforgeAccount)
 
 void MainWindow::addGameforgeAccount(const QString &email, const QString &password)
 {
-    NostaleAuth* nostaleAuth = new NostaleAuth(identity, settingsDialog->getGfClientVersion(), this);
+    NostaleAuth* nostaleAuth = new NostaleAuth(identity, this);
     bool captcha = false;
     bool wrongCredentials = false;
     QString gfChallengeId;
@@ -350,25 +346,6 @@ void MainWindow::loadIdentity(const QString &path)
     identity->load(path);
 }
 
-void MainWindow::updateGfVersion(QString gfver)
-{
-    for (auto accs : accounts)
-    {
-        accs->setGfVersion(gfver);
-    }
-}
-
-bool MainWindow::checkGfVersion()
-{
-    if (settingsDialog->getGfClientVersion().isEmpty())
-    {
-        QMessageBox::critical(this, "Error", "Gameforge Client version is empty. Please set it up on Options > Settings");
-        return false;
-    }
-
-    return true;
-}
-
 void MainWindow::createTrayIcon()
 {
     QAction* showAction = new QAction("Show", this);
diff --git a/mainwindow.h b/mainwindow.h
index 7a3d869..b8dff64 100644
--- a/mainwindow.h
+++ b/mainwindow.h
@@ -89,8 +89,6 @@ private slots:
     void displayProfiles(const QString& gameforgeAccount);
     void addGameforgeAccount(const QString& email, const QString& password);
     void loadIdentity(const QString& path);
-    void updateGfVersion(QString gfver);
-    bool checkGfVersion();
 
     Ui::MainWindow *ui;
     SettingsDialog* settingsDialog;
diff --git a/nostaleauth.cpp b/nostaleauth.cpp
index a3003c5..f5434b1 100644
--- a/nostaleauth.cpp
+++ b/nostaleauth.cpp
@@ -1,11 +1,11 @@
 #include "nostaleauth.h"
 
-NostaleAuth::NostaleAuth(const std::shared_ptr<Identity> &id, const QString &gfver, QObject *parent) : QObject(parent), identity(id)
+NostaleAuth::NostaleAuth(const std::shared_ptr<Identity> &id, QObject *parent) : QObject(parent), identity(id)
 {
     this->locale = QLocale().name();
     this->browserUserAgent = "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.121 Safari/537.36";
-    setGfVersion(gfver);
 
+    initGfVersion();
     initCert();
     initInstallationId();
     initAllCerts();
@@ -60,6 +60,10 @@ bool NostaleAuth::authenthicate(const QString &email, const QString &password, b
     request.setRawHeader("Origin", "spark://www.gameforge.com");
     request.setRawHeader("Connection", "Keep-Alive");
 
+    identity->update();
+    BlackBox blackbox(identity, QJsonValue::Null);
+
+    content["blackbox"] = blackbox.encoded();
     content["email"] = email;
     content["locale"] = locale;
     content["password"] = password;
@@ -140,12 +144,6 @@ QString NostaleAuth::getToken(const QString &accountId)
     return jsonResponse["code"].toString();
 }
 
-void NostaleAuth::setGfVersion(QString ver)
-{
-    this->chromeVersion = "C" + ver;
-    this->gameforgeVersion = ver.left(ver.lastIndexOf("."));
-}
-
 QChar NostaleAuth::getFirstNumber(QString uuid)
 {
     for (const auto& c : uuid)
@@ -332,3 +330,25 @@ void NostaleAuth::initPrivateKey()
 
     this->privateKey = QSslKey(key, QSsl::Rsa);
 }
+
+void NostaleAuth::initGfVersion()
+{
+    QJsonObject jsonResponse;
+    QNetworkRequest request(QUrl("http://dl.tnt.gameforge.com/tnt/final-ms3/clientversioninfo.json"));
+    SyncNetworAccesskManager networkManager(this);
+    QNetworkReply* reply = nullptr;
+
+
+    reply = networkManager.get(request);
+    reply->deleteLater();
+
+    QByteArray response = reply->readAll();
+
+    if (reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt() != 200)
+        return;
+
+    jsonResponse = QJsonDocument::fromJson(response).object();
+
+    this->chromeVersion = "C" + jsonResponse["version"].toString();
+    this->gameforgeVersion = jsonResponse["minimumVersionForDelayedUpdate"].toString();
+}
diff --git a/nostaleauth.h b/nostaleauth.h
index c13922a..624fad7 100644
--- a/nostaleauth.h
+++ b/nostaleauth.h
@@ -20,7 +20,7 @@ class NostaleAuth : public QObject
 {
     Q_OBJECT
 public:
-    explicit NostaleAuth(const std::shared_ptr<Identity>& id, const QString& gfver, QObject *parent = nullptr);
+    explicit NostaleAuth(const std::shared_ptr<Identity>& id, QObject *parent = nullptr);
 
     QMap<QString /* displayName */, QString /* id */> getAccounts();
 
@@ -28,8 +28,6 @@ class NostaleAuth : public QObject
 
     QString getToken(const QString& accountId);
 
-    void setGfVersion(QString ver);
-
 signals:
     void captchaStart();
     void captchaEnd();
@@ -53,6 +51,8 @@ class NostaleAuth : public QObject
 
     void initPrivateKey();
 
+    void initGfVersion();
+
     QString locale;
     QString installationId;
     QString chromeVersion;
diff --git a/settingsdialog.cpp b/settingsdialog.cpp
index e4782c4..af6ab54 100644
--- a/settingsdialog.cpp
+++ b/settingsdialog.cpp
@@ -60,11 +60,6 @@ bool SettingsDialog::autoLogIn() const
     return ui->autoLogInCheckBox->isChecked();
 }
 
-QString SettingsDialog::getGfClientVersion() const
-{
-    return ui->gfClientVersionEdit->text();
-}
-
 void SettingsDialog::setGameClientPath(const QString &path)
 {
     ui->gameClientPathLineEdit->setText(path);
@@ -106,11 +101,6 @@ void SettingsDialog::setAutoLogin(bool login)
     ui->autoLogInCheckBox->setChecked(login);
 }
 
-void SettingsDialog::setGfClientVersion(const QString &version)
-{
-    ui->gfClientVersionEdit->setText(version);
-}
-
 void SettingsDialog::on_selectGamePathButton_clicked()
 {
     QString path = QFileDialog::getOpenFileName(this, "Select NostaleClientX.exe", QDir::rootPath(), "NostaleClientX.exe (NostaleClientX.exe)");
@@ -169,8 +159,3 @@ void SettingsDialog::on_selectIdentityButton_clicked()
 }
 
 
-void SettingsDialog::on_gfClientVersionEdit_textChanged(const QString &arg1)
-{
-    emit gfVersionChanged(arg1);
-}
-
diff --git a/settingsdialog.h b/settingsdialog.h
index e2af550..7671993 100644
--- a/settingsdialog.h
+++ b/settingsdialog.h
@@ -34,8 +34,6 @@ class SettingsDialog : public QDialog
 
     bool autoLogIn() const;
 
-    QString getGfClientVersion() const;
-
     void setGameClientPath(const QString& path);
 
     void setProfilesPath(const QString& path);
@@ -52,8 +50,6 @@ class SettingsDialog : public QDialog
 
     void setAutoLogin(bool login);
 
-    void setGfClientVersion(const QString& version);
-
 signals:
     void autoLoginStateChanged(bool);
 
@@ -61,8 +57,6 @@ class SettingsDialog : public QDialog
 
     void identityPathSelected(QString);
 
-    void gfVersionChanged(QString);
-
 private slots:
     void on_selectGamePathButton_clicked();
 
@@ -72,8 +66,6 @@ private slots:
 
     void on_selectIdentityButton_clicked();
 
-    void on_gfClientVersionEdit_textChanged(const QString &arg1);
-
 private:
     void initLanguageComboBox();
 
diff --git a/settingsdialog.ui b/settingsdialog.ui
index 3ef4629..a49cc6d 100644
--- a/settingsdialog.ui
+++ b/settingsdialog.ui
@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>391</width>
-    <height>297</height>
+    <width>388</width>
+    <height>267</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -16,24 +16,24 @@
   <layout class="QVBoxLayout" name="verticalLayout">
    <item>
     <layout class="QFormLayout" name="formLayout">
-     <item row="2" column="0">
-      <widget class="QLabel" name="label_2">
+     <item row="0" column="0">
+      <widget class="QLabel" name="identityLabel">
        <property name="text">
-        <string>Nostale path:</string>
+        <string>Identity path:</string>
        </property>
       </widget>
      </item>
-     <item row="2" column="1">
-      <layout class="QHBoxLayout" name="horizontalLayout_2" stretch="1,0">
+     <item row="0" column="1">
+      <layout class="QHBoxLayout" name="horizontalLayout_3">
        <item>
-        <widget class="QLineEdit" name="gameClientPathLineEdit">
+        <widget class="QLineEdit" name="identityLineEdit">
          <property name="readOnly">
           <bool>true</bool>
          </property>
         </widget>
        </item>
        <item>
-        <widget class="QPushButton" name="selectGamePathButton">
+        <widget class="QPushButton" name="selectIdentityButton">
          <property name="text">
           <string>Select</string>
          </property>
@@ -41,52 +41,6 @@
        </item>
       </layout>
      </item>
-     <item row="4" column="0">
-      <widget class="QLabel" name="label_4">
-       <property name="text">
-        <string>Game language:</string>
-       </property>
-      </widget>
-     </item>
-     <item row="4" column="1">
-      <widget class="QComboBox" name="gameLanguageComboBox">
-       <property name="minimumSize">
-        <size>
-         <width>80</width>
-         <height>0</height>
-        </size>
-       </property>
-       <property name="currentText">
-        <string/>
-       </property>
-      </widget>
-     </item>
-     <item row="5" column="0">
-      <widget class="QLabel" name="label">
-       <property name="text">
-        <string>Open interval:</string>
-       </property>
-      </widget>
-     </item>
-     <item row="5" column="1">
-      <widget class="QSpinBox" name="openIntervalSpinBox">
-       <property name="minimumSize">
-        <size>
-         <width>80</width>
-         <height>0</height>
-        </size>
-       </property>
-       <property name="alignment">
-        <set>Qt::AlignCenter</set>
-       </property>
-       <property name="suffix">
-        <string> secs</string>
-       </property>
-       <property name="value">
-        <number>0</number>
-       </property>
-      </widget>
-     </item>
      <item row="1" column="0">
       <widget class="QLabel" name="profilesPathLabel">
        <property name="text">
@@ -112,24 +66,24 @@
        </item>
       </layout>
      </item>
-     <item row="0" column="0">
-      <widget class="QLabel" name="identityLabel">
+     <item row="2" column="0">
+      <widget class="QLabel" name="label_2">
        <property name="text">
-        <string>Identity path:</string>
+        <string>Nostale path:</string>
        </property>
       </widget>
      </item>
-     <item row="0" column="1">
-      <layout class="QHBoxLayout" name="horizontalLayout_3">
+     <item row="2" column="1">
+      <layout class="QHBoxLayout" name="horizontalLayout_2" stretch="1,0">
        <item>
-        <widget class="QLineEdit" name="identityLineEdit">
+        <widget class="QLineEdit" name="gameClientPathLineEdit">
          <property name="readOnly">
           <bool>true</bool>
          </property>
         </widget>
        </item>
        <item>
-        <widget class="QPushButton" name="selectIdentityButton">
+        <widget class="QPushButton" name="selectGamePathButton">
          <property name="text">
           <string>Select</string>
          </property>
@@ -138,14 +92,50 @@
       </layout>
      </item>
      <item row="3" column="0">
-      <widget class="QLabel" name="label_3">
+      <widget class="QLabel" name="label_4">
        <property name="text">
-        <string>GF client version:</string>
+        <string>Game language:</string>
        </property>
       </widget>
      </item>
      <item row="3" column="1">
-      <widget class="QLineEdit" name="gfClientVersionEdit"/>
+      <widget class="QComboBox" name="gameLanguageComboBox">
+       <property name="minimumSize">
+        <size>
+         <width>80</width>
+         <height>0</height>
+        </size>
+       </property>
+       <property name="currentText">
+        <string/>
+       </property>
+      </widget>
+     </item>
+     <item row="4" column="0">
+      <widget class="QLabel" name="label">
+       <property name="text">
+        <string>Open interval:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="4" column="1">
+      <widget class="QSpinBox" name="openIntervalSpinBox">
+       <property name="minimumSize">
+        <size>
+         <width>80</width>
+         <height>0</height>
+        </size>
+       </property>
+       <property name="alignment">
+        <set>Qt::AlignCenter</set>
+       </property>
+       <property name="suffix">
+        <string> secs</string>
+       </property>
+       <property name="value">
+        <number>0</number>
+       </property>
+      </widget>
      </item>
     </layout>
    </item>