diff --git a/client/core/ipcclient.cpp b/client/core/ipcclient.cpp
index 03a3152c..475810a8 100644
--- a/client/core/ipcclient.cpp
+++ b/client/core/ipcclient.cpp
@@ -1,38 +1,83 @@
 #include "ipcclient.h"
 #include <QRemoteObjectNode>
 
-IpcClient &IpcClient::Instance()
+IpcClient *IpcClient::m_instance = nullptr;
+
+IpcClient::IpcClient(QObject *parent) : QObject(parent)
 {
-    static IpcClient s;
-    return s;
+
 }
 
-bool IpcClient::init()
+IpcClient::~IpcClient()
 {
-    Instance().m_localSocket->waitForConnected();
+    if (m_localSocket) m_localSocket->close();
+}
 
-    if (!Instance().m_ipcClient) {
+bool IpcClient::isSocketConnected() const
+{
+    return m_isSocketConnected;
+}
+
+IpcClient *IpcClient::Instance()
+{
+    return m_instance;
+}
+
+QSharedPointer<IpcInterfaceReplica> IpcClient::Interface()
+{
+    if (!Instance()) return nullptr;
+    return Instance()->m_ipcClient;
+}
+
+bool IpcClient::init(IpcClient *instance)
+{
+    m_instance = instance;
+
+    Instance()->m_localSocket = new QLocalSocket(Instance());
+    connect(Instance()->m_localSocket.data(), &QLocalSocket::connected, &Instance()->m_ClientNode, []() {
+        Instance()->m_ClientNode.addClientSideConnection(Instance()->m_localSocket.data());
+
+        Instance()->m_ipcClient.reset(Instance()->m_ClientNode.acquire<IpcInterfaceReplica>());
+        Instance()->m_ipcClient->waitForSource(1000);
+
+        if (!Instance()->m_ipcClient->isReplicaValid()) {
+            qWarning() << "IpcClient replica is not connected!";
+        }
+
+    });
+
+    connect(Instance()->m_localSocket, &QLocalSocket::disconnected, [instance](){
+        instance->m_isSocketConnected = false;
+    });
+
+    Instance()->m_localSocket->connectToServer(amnezia::getIpcServiceUrl());
+
+    Instance()->m_localSocket->waitForConnected();
+
+    if (!Instance()->m_ipcClient) {
         qDebug() << "IpcClient::init failed";
         return false;
     }
-    return Instance().m_ipcClient->isReplicaValid();
+    qDebug() << "IpcClient::init succeed";
+
+    return Instance()->m_ipcClient->isReplicaValid();
 }
 
 QSharedPointer<IpcProcessInterfaceReplica> IpcClient::CreatePrivilegedProcess()
 {
 #ifndef Q_OS_IOS
-    if (! Instance().m_ipcClient || ! Instance().m_ipcClient->isReplicaValid()) {
+    if (! Instance()->m_ipcClient || ! Instance()->m_ipcClient->isReplicaValid()) {
         qWarning() << "IpcClient::createPrivilegedProcess : IpcClient IpcClient replica is not valid";
         return nullptr;
     }
 
-    QRemoteObjectPendingReply<int> futureResult = Instance().m_ipcClient->createPrivilegedProcess();
+    QRemoteObjectPendingReply<int> futureResult = Instance()->m_ipcClient->createPrivilegedProcess();
     futureResult.waitForFinished(1000);
 
     int pid = futureResult.returnValue();
 
     auto pd = QSharedPointer<ProcessDescriptor>(new ProcessDescriptor());
-    Instance().m_processNodes.insert(pid, pd);
+    Instance()->m_processNodes.insert(pid, pd);
 
     pd->localSocket.reset(new QLocalSocket(pd->replicaNode.data()));
 
@@ -65,19 +110,4 @@ QSharedPointer<IpcProcessInterfaceReplica> IpcClient::CreatePrivilegedProcess()
 #endif
 }
 
-IpcClient::IpcClient(QObject *parent) : QObject(parent)
-{
-    m_localSocket.reset(new QLocalSocket(this));
-    connect(m_localSocket.data(), &QLocalSocket::connected, &m_ClientNode, [this]() {
-        m_ClientNode.addClientSideConnection(m_localSocket.data());
 
-        m_ipcClient.reset(m_ClientNode.acquire<IpcInterfaceReplica>());
-        m_ipcClient->waitForSource(1000);
-
-        if (!m_ipcClient->isReplicaValid()) {
-            qWarning() << "IpcClient replica is not connected!";
-        }
-
-    });
-    m_localSocket->connectToServer(amnezia::getIpcServiceUrl());
-}
diff --git a/client/core/ipcclient.h b/client/core/ipcclient.h
index 6eef02b1..1548a6cb 100644
--- a/client/core/ipcclient.h
+++ b/client/core/ipcclient.h
@@ -19,19 +19,23 @@ class IpcClient : public QObject
 {
     Q_OBJECT
 public:
-   static IpcClient &Instance();
-   static bool init();
-   static QSharedPointer<IpcInterfaceReplica> Interface() { return Instance().m_ipcClient; }
+   explicit IpcClient(QObject *parent = nullptr);
+
+   static IpcClient *Instance();
+   static bool init(IpcClient *instance);
+   static QSharedPointer<IpcInterfaceReplica> Interface();
    static QSharedPointer<IpcProcessInterfaceReplica> CreatePrivilegedProcess();
 
+   bool isSocketConnected() const;
+
 signals:
 
 private:
-    explicit IpcClient(QObject *parent = nullptr);
+    ~IpcClient() override;
 
     QRemoteObjectNode m_ClientNode;
     QSharedPointer<IpcInterfaceReplica> m_ipcClient;
-    QSharedPointer<QLocalSocket> m_localSocket;
+    QPointer<QLocalSocket> m_localSocket;
 
     struct ProcessDescriptor {
         ProcessDescriptor () {
@@ -45,6 +49,9 @@ private:
     };
 
     QMap<int, QSharedPointer<ProcessDescriptor>> m_processNodes;
+    bool m_isSocketConnected {false};
+
+    static IpcClient *m_instance;
 };
 
 #endif // IPCCLIENT_H
diff --git a/client/main.cpp b/client/main.cpp
index c3b40b4e..0dad4aa2 100644
--- a/client/main.cpp
+++ b/client/main.cpp
@@ -117,6 +117,8 @@ int main(int argc, char *argv[])
     app.setQuitOnLastWindowClosed(false);
 
     qRegisterMetaType<VpnProtocol::ConnectionState>("VpnProtocol::ConnectionState");
+    qRegisterMetaType<ServerCredentials>("ServerCredentials");
+
     qRegisterMetaType<DockerContainer>("DockerContainer");
     qRegisterMetaType<TransportProto>("TransportProto");
     qRegisterMetaType<Protocol>("Protocol");
@@ -128,7 +130,7 @@ int main(int argc, char *argv[])
 
     UiLogic *uiLogic = new UiLogic;
 
-    QQmlApplicationEngine engine;
+    QQmlApplicationEngine *engine = new QQmlApplicationEngine;
 
     declareQmlPageEnum();
     declareQmlProtocolEnum();
@@ -141,29 +143,37 @@ int main(int argc, char *argv[])
     qmlRegisterSingletonInstance("ProtocolProps", 1, 0, "ProtocolProps", protocolProps.get());
 
     const QUrl url(QStringLiteral("qrc:/ui/qml/main.qml"));
-    QObject::connect(&engine, &QQmlApplicationEngine::objectCreated,
+    QObject::connect(engine, &QQmlApplicationEngine::objectCreated,
                      &app, [url](QObject *obj, const QUrl &objUrl) {
         if (!obj && url == objUrl)
             QCoreApplication::exit(-1);
     }, Qt::QueuedConnection);
 
-    engine.rootContext()->setContextProperty("UiLogic", uiLogic);
+    engine->rootContext()->setContextProperty("UiLogic", uiLogic);
 
-    engine.rootContext()->setContextProperty("AppSettingsLogic", uiLogic->appSettingsLogic());
-    engine.rootContext()->setContextProperty("GeneralSettingsLogic", uiLogic->generalSettingsLogic());
-    engine.rootContext()->setContextProperty("NetworkSettingsLogic", uiLogic->networkSettingsLogic());
-    engine.rootContext()->setContextProperty("ServerConfiguringProgressLogic", uiLogic->serverConfiguringProgressLogic());
-    engine.rootContext()->setContextProperty("NewServerProtocolsLogic", uiLogic->newServerProtocolsLogic());
-    engine.rootContext()->setContextProperty("ServerListLogic", uiLogic->serverListLogic());
-    engine.rootContext()->setContextProperty("ServerSettingsLogic", uiLogic->serverSettingsLogic());
-    engine.rootContext()->setContextProperty("ServerContainersLogic", uiLogic->serverVpnProtocolsLogic());
-    engine.rootContext()->setContextProperty("ShareConnectionLogic", uiLogic->shareConnectionLogic());
-    engine.rootContext()->setContextProperty("SitesLogic", uiLogic->sitesLogic());
-    engine.rootContext()->setContextProperty("StartPageLogic", uiLogic->startPageLogic());
-    engine.rootContext()->setContextProperty("VpnLogic", uiLogic->vpnLogic());
-    engine.rootContext()->setContextProperty("WizardLogic", uiLogic->wizardLogic());
+    engine->rootContext()->setContextProperty("AppSettingsLogic", uiLogic->appSettingsLogic());
+    engine->rootContext()->setContextProperty("GeneralSettingsLogic", uiLogic->generalSettingsLogic());
+    engine->rootContext()->setContextProperty("NetworkSettingsLogic", uiLogic->networkSettingsLogic());
+    engine->rootContext()->setContextProperty("ServerConfiguringProgressLogic", uiLogic->serverConfiguringProgressLogic());
+    engine->rootContext()->setContextProperty("NewServerProtocolsLogic", uiLogic->newServerProtocolsLogic());
+    engine->rootContext()->setContextProperty("ServerListLogic", uiLogic->serverListLogic());
+    engine->rootContext()->setContextProperty("ServerSettingsLogic", uiLogic->serverSettingsLogic());
+    engine->rootContext()->setContextProperty("ServerContainersLogic", uiLogic->serverVpnProtocolsLogic());
+    engine->rootContext()->setContextProperty("ShareConnectionLogic", uiLogic->shareConnectionLogic());
+    engine->rootContext()->setContextProperty("SitesLogic", uiLogic->sitesLogic());
+    engine->rootContext()->setContextProperty("StartPageLogic", uiLogic->startPageLogic());
+    engine->rootContext()->setContextProperty("VpnLogic", uiLogic->vpnLogic());
+    engine->rootContext()->setContextProperty("WizardLogic", uiLogic->wizardLogic());
 
-    engine.load(url);
+    engine->load(url);
+
+    QObject::connect(&app, &QCoreApplication::aboutToQuit, uiLogic, [&engine, uiLogic](){
+        QObject::disconnect(engine, 0,0,0);
+        delete engine;
+
+        QObject::disconnect(uiLogic, 0,0,0);
+        delete uiLogic;
+    });
 
     // TODO - fix
 //#ifdef Q_OS_WIN
diff --git a/client/protocols/ikev2_vpn_protocol.cpp b/client/protocols/ikev2_vpn_protocol.cpp
index f63e498e..ccb3c7ad 100644
--- a/client/protocols/ikev2_vpn_protocol.cpp
+++ b/client/protocols/ikev2_vpn_protocol.cpp
@@ -39,26 +39,15 @@ Ikev2Protocol::~Ikev2Protocol()
 
 void Ikev2Protocol::stop()
 {
+    setConnectionState(VpnProtocol::Disconnecting);
 #ifdef Q_OS_WINDOWS
     {
-        //setConnectionState(Disconnecting);
-
-        //auto disconnectProcess = new QProcess;
-
-        //        disconnectProcess->setProgram("rasdial");
-        //        QString arguments = QString("\"%1\" /disconnect")
-        //                .arg(tunnelName());
-        //        disconnectProcess->setNativeArguments(arguments);
-
-        //        //        connect(connectProcess, &QProcess::readyRead, [connectProcess]() {
-        //        //            qDebug().noquote() << "connectProcess readyRead" << connectProcess->readAll();
-        //        //        });
-
-        //        disconnectProcess->start();
-        //        disconnectProcess->waitForFinished(5000);
-        //        setConnectionState(Disconnected);
         if (! disconnect_vpn() ){
             qDebug()<<"We don't disconnect";
+            setConnectionState(VpnProtocol::Error);
+        }
+        else {
+            setConnectionState(VpnProtocol::Disconnected);
         }
     }
 #endif
@@ -440,12 +429,11 @@ bool Ikev2Protocol::disconnect_vpn(){
         if ( RasHangUp(hRasConn) != ERROR_SUCCESS)
             return false;
     }
-    std::this_thread::sleep_for(std::chrono::seconds(3));
+    QThread::msleep(3000);
+
     return true;
 }
-#endif
 
-#ifdef Q_OS_WINDOWS
 void WINAPI RasDialFuncCallback(UINT unMsg,
                                 RASCONNSTATE rasconnstate,
                                 DWORD dwError ){
diff --git a/client/ui/pages_logic/VpnLogic.cpp b/client/ui/pages_logic/VpnLogic.cpp
index cc7884fc..b01407eb 100644
--- a/client/ui/pages_logic/VpnLogic.cpp
+++ b/client/ui/pages_logic/VpnLogic.cpp
@@ -24,6 +24,9 @@ VpnLogic::VpnLogic(UiLogic *logic, QObject *parent):
     connect(uiLogic()->m_vpnConnection, &VpnConnection::connectionStateChanged, this, &VpnLogic::onConnectionStateChanged);
     connect(uiLogic()->m_vpnConnection, &VpnConnection::vpnProtocolError, this, &VpnLogic::onVpnProtocolError);
 
+    connect(this, &VpnLogic::connectToVpn, uiLogic()->m_vpnConnection, &VpnConnection::connectToVpn, Qt::QueuedConnection);
+    connect(this, &VpnLogic::disconnectFromVpn, uiLogic()->m_vpnConnection, &VpnConnection::disconnectFromVpn, Qt::QueuedConnection);
+
     if (m_settings.isAutoConnect() && m_settings.defaultServerIndex() >= 0) {
         QTimer::singleShot(1000, this, [this](){
             set_pushButtonConnectEnabled(false);
@@ -166,20 +169,19 @@ void VpnLogic::onConnectWorker(int serverIndex, const ServerCredentials &credent
 
     qApp->processEvents();
 
-    ErrorCode errorCode = uiLogic()->m_vpnConnection->connectToVpn(
-                serverIndex, credentials, container, containerConfig);
+    emit connectToVpn(serverIndex, credentials, container, containerConfig);
 
-    if (errorCode) {
-        //ui->pushButton_connect->setChecked(false);
-        uiLogic()->setDialogConnectErrorText(errorString(errorCode));
-        emit uiLogic()->showConnectErrorDialog();
-        return;
-    }
+//    if (errorCode) {
+//        //ui->pushButton_connect->setChecked(false);
+//        uiLogic()->setDialogConnectErrorText(errorString(errorCode));
+//        emit uiLogic()->showConnectErrorDialog();
+//        return;
+//    }
 
 }
 
 void VpnLogic::onDisconnect()
 {
     set_pushButtonConnectChecked(false);
-    uiLogic()->m_vpnConnection->disconnectFromVpn();
+    emit disconnectFromVpn();
 }
diff --git a/client/ui/pages_logic/VpnLogic.h b/client/ui/pages_logic/VpnLogic.h
index cda57f6d..07146952 100644
--- a/client/ui/pages_logic/VpnLogic.h
+++ b/client/ui/pages_logic/VpnLogic.h
@@ -48,5 +48,10 @@ public slots:
     void onConnectionStateChanged(VpnProtocol::ConnectionState state);
     void onVpnProtocolError(amnezia::ErrorCode errorCode);
 
+signals:
+    void connectToVpn(int serverIndex,
+        const ServerCredentials &credentials, DockerContainer container, const QJsonObject &containerConfig);
+
+    void disconnectFromVpn();
 };
 #endif // VPN_LOGIC_H
diff --git a/client/ui/uilogic.cpp b/client/ui/uilogic.cpp
index d1525a7f..4f94f7a0 100644
--- a/client/ui/uilogic.cpp
+++ b/client/ui/uilogic.cpp
@@ -77,7 +77,9 @@ UiLogic::UiLogic(QObject *parent) :
 {
     m_containersModel = new ContainersModel(this);
     m_protocolsModel = new ProtocolsModel(this);
-    m_vpnConnection = new VpnConnection(this);
+    m_vpnConnection = new VpnConnection();
+    m_vpnConnection->moveToThread(&m_vpnConnectionThread);
+    m_vpnConnectionThread.start();
 
     m_appSettingsLogic = new AppSettingsLogic(this);
     m_generalSettingsLogic = new GeneralSettingsLogic(this);
@@ -264,16 +266,21 @@ void UiLogic::setDialogConnectErrorText(const QString &dialogConnectErrorText)
 
 UiLogic::~UiLogic()
 {
-    hide();
-    m_vpnConnection->disconnectFromVpn();
-    for (int i = 0; i < 50; i++) {
-        qApp->processEvents(QEventLoop::ExcludeUserInputEvents);
-        QThread::msleep(100);
-        if (m_vpnConnection->isDisconnected()) {
-            break;
+    emit hide();
+
+    if (m_vpnConnection->connectionState() != VpnProtocol::ConnectionState::Disconnected) {
+        m_vpnConnection->disconnectFromVpn();
+        for (int i = 0; i < 50; i++) {
+            qApp->processEvents(QEventLoop::ExcludeUserInputEvents);
+            QThread::msleep(100);
+            if (m_vpnConnection->isDisconnected()) {
+                break;
+            }
         }
     }
 
+    m_vpnConnectionThread.quit();
+    m_vpnConnectionThread.wait(3000);
     delete m_vpnConnection;
 
     qDebug() << "Application closed";
diff --git a/client/ui/uilogic.h b/client/ui/uilogic.h
index 320f7af1..21ea7066 100644
--- a/client/ui/uilogic.h
+++ b/client/ui/uilogic.h
@@ -5,6 +5,7 @@
 #include <QQmlEngine>
 #include <functional>
 #include <QKeyEvent>
+#include <QThread>
 
 #include "property_helper.h"
 #include "pages.h"
@@ -210,6 +211,7 @@ private:
     QMap<Protocol, PageProtocolLogicBase *> m_protocolLogicMap;
 
     VpnConnection* m_vpnConnection;
+    QThread m_vpnConnectionThread;
     Settings m_settings;
 
 
diff --git a/client/vpnconnection.cpp b/client/vpnconnection.cpp
index 6169902b..456a8568 100644
--- a/client/vpnconnection.cpp
+++ b/client/vpnconnection.cpp
@@ -23,12 +23,7 @@
 
 VpnConnection::VpnConnection(QObject* parent) : QObject(parent)
 {
-    QTimer::singleShot(0, this, [this](){
-        if (!IpcClient::init()) {
-            qWarning() << "Error occured when init IPC client";
-            emit serviceIsNotReady();
-        }
-    });
+
 }
 
 VpnConnection::~VpnConnection()
@@ -190,10 +185,6 @@ QJsonObject VpnConnection::createVpnConfiguration(int serverIndex,
 
 
     for (ProtocolEnumNS::Protocol proto : ContainerProps::protocolsForContainer(container)) {
-//        QString vpnConfigData =
-//            createVpnConfigurationForProto(
-//                serverIndex, credentials, container, containerConfig, proto, &e);
-
         QJsonObject vpnConfigData = QJsonDocument::fromJson(
             createVpnConfigurationForProto(
                 serverIndex, credentials, container, containerConfig, proto, &e).toUtf8()).
@@ -205,7 +196,6 @@ QJsonObject VpnConnection::createVpnConfiguration(int serverIndex,
         }
 
         vpnConfiguration.insert(ProtocolProps::key_proto_config_data(proto), vpnConfigData);
-
     }
 
     Protocol proto = ContainerProps::defaultProtocol(container);
@@ -214,11 +204,27 @@ QJsonObject VpnConnection::createVpnConfiguration(int serverIndex,
     return vpnConfiguration;
 }
 
-ErrorCode VpnConnection::connectToVpn(int serverIndex,
+void VpnConnection::connectToVpn(int serverIndex,
     const ServerCredentials &credentials, DockerContainer container, const QJsonObject &containerConfig)
 {
     qDebug() << QString("СonnectToVpn, Server index is %1, container is %2, route mode is")
                 .arg(serverIndex).arg(ContainerProps::containerToString(container)) << m_settings.routeMode();
+
+    #if !defined (Q_OS_ANDROID) && !defined (Q_OS_IOS)
+    if (!m_IpcClient) {
+        m_IpcClient = new IpcClient;
+    }
+
+    if (!m_IpcClient->isSocketConnected()) {
+        if (!IpcClient::init(m_IpcClient)) {
+            qWarning() << "Error occured when init IPC client";
+            emit serviceIsNotReady();
+            emit connectionStateChanged(VpnProtocol::Error);
+            return;
+        }
+    }
+#endif
+
     m_remoteAddress = credentials.hostName;
 
     emit connectionStateChanged(VpnProtocol::Connecting);
@@ -233,26 +239,26 @@ ErrorCode VpnConnection::connectToVpn(int serverIndex,
     m_vpnConfiguration = createVpnConfiguration(serverIndex, credentials, container, containerConfig);
     if (e) {
         emit connectionStateChanged(VpnProtocol::Error);
-        return e;
+        return;
     }
 
 
 #ifndef Q_OS_ANDROID
-
     m_vpnProtocol.reset(VpnProtocol::factory(container, m_vpnConfiguration));
     if (!m_vpnProtocol) {
-        return ErrorCode::InternalError;
+        emit VpnProtocol::Error;
+        return;
     }
 
     m_vpnProtocol->prepare();
 
-
 #else
     Protocol proto = ContainerProps::defaultProtocol(container);
     AndroidVpnProtocol *androidVpnProtocol = new AndroidVpnProtocol(proto, m_vpnConfiguration);
     if (!androidVpnProtocol->initialize()) {
          qDebug() << QString("Init failed") ;
-         return UnknownError;
+         emit VpnProtocol::Error;
+         return;
     }
     m_vpnProtocol.reset(androidVpnProtocol);
 #endif
@@ -263,7 +269,8 @@ ErrorCode VpnConnection::connectToVpn(int serverIndex,
 
     ServerController::disconnectFromHost(credentials);
 
-    return m_vpnProtocol.data()->start();
+    e = m_vpnProtocol.data()->start();
+    if (e) emit VpnProtocol::Error;
 }
 
 QString VpnConnection::bytesPerSecToText(quint64 bytes)
diff --git a/client/vpnconnection.h b/client/vpnconnection.h
index 5ad0ef94..9d0c3337 100644
--- a/client/vpnconnection.h
+++ b/client/vpnconnection.h
@@ -34,10 +34,7 @@ public:
         const ServerCredentials &credentials, DockerContainer container,
         const QJsonObject &containerConfig, ErrorCode *errorCode = nullptr);
 
-    ErrorCode connectToVpn(int serverIndex,
-        const ServerCredentials &credentials, DockerContainer container, const QJsonObject &containerConfig);
 
-    void disconnectFromVpn();
 
     bool isConnected() const;
     bool isDisconnected() const;
@@ -51,6 +48,12 @@ public:
 
     const QString &remoteAddress() const;
 
+public slots:
+    void connectToVpn(int serverIndex,
+        const ServerCredentials &credentials, DockerContainer container, const QJsonObject &containerConfig);
+
+    void disconnectFromVpn();
+
 signals:
     void bytesChanged(quint64 receivedBytes, quint64 sentBytes);
     void connectionStateChanged(VpnProtocol::ConnectionState state);
@@ -70,6 +73,7 @@ private:
     QJsonObject m_vpnConfiguration;
     QJsonObject m_routeMode;
     QString m_remoteAddress;
+    IpcClient *m_IpcClient {nullptr};
 
 };