diff --git a/src/plugins/bearer/networkmanager/qnetworkmanagerengine.cpp b/src/plugins/bearer/networkmanager/qnetworkmanagerengine.cpp
index 3b8a85a..d4649c3 100644
--- a/src/plugins/bearer/networkmanager/qnetworkmanagerengine.cpp
+++ b/src/plugins/bearer/networkmanager/qnetworkmanagerengine.cpp
@@ -122,6 +122,8 @@ void QNetworkManagerEngine::setupConfigurations()
     QMutexLocker locker(&mutex);
     // Get active connections.
     foreach (const QDBusObjectPath &acPath, managerInterface->activeConnections()) {
+        if (activeConnectionsList.contains(acPath.path()))
+            continue;
 
         QNetworkManagerConnectionActive *activeConnection =
                 new QNetworkManagerConnectionActive(acPath.path(),this);
@@ -131,6 +133,8 @@ void QNetworkManagerEngine::setupConfigurations()
 
         QStringList devices = activeConnection->devices();
         if (!devices.isEmpty()) {
+            if (connectionInterfaces.contains(activeConnection->connection().path()))
+                continue;
             QNetworkManagerInterfaceDevice device(devices.at(0),this);
             connectionInterfaces.insert(activeConnection->connection().path(),device.networkInterface());
         }
@@ -395,6 +399,9 @@ void QNetworkManagerEngine::deviceConnectionsChanged(const QStringList &connecti
 
 void QNetworkManagerEngine::deviceAdded(const QDBusObjectPath &path)
 {
+    if (interfaceDevices.contains(path.path()))
+        return;
+
     QNetworkManagerInterfaceDevice *iDevice;
     iDevice = new QNetworkManagerInterfaceDevice(path.path(),this);
     connect(iDevice,SIGNAL(connectionsChanged(QStringList)),
@@ -739,9 +746,9 @@ void QNetworkManagerEngine::removeAccessPoint(const QString &path)
 {
     QMutexLocker locker(&mutex);
     for (int i = 0; i < accessPoints.count(); ++i) {
-        QNetworkManagerInterfaceAccessPoint *accessPoint = accessPoints.at(i);
-        if (accessPoint->path() == path) {
-            accessPoints.removeOne(accessPoint);
+        if (accessPoints.at(i)->path() == path) {
+
+            QNetworkManagerInterfaceAccessPoint *accessPoint = accessPoints.takeAt(i);
 
             if (configuredAccessPoints.contains(accessPoint->path())) {
                 // find connection and change state to Defined
diff --git a/src/plugins/bearer/networkmanager/qnetworkmanagerservice.cpp b/src/plugins/bearer/networkmanager/qnetworkmanagerservice.cpp
index 75c4ce20..122673f 100644
--- a/src/plugins/bearer/networkmanager/qnetworkmanagerservice.cpp
+++ b/src/plugins/bearer/networkmanager/qnetworkmanagerservice.cpp
@@ -95,6 +95,21 @@ QNetworkManagerInterface::QNetworkManagerInterface(QObject *parent)
 
 QNetworkManagerInterface::~QNetworkManagerInterface()
 {
+    QDBusConnection::systemBus().disconnect(QLatin1String(NM_DBUS_SERVICE),
+                                  QLatin1String(NM_DBUS_PATH),
+                                  QLatin1String(NM_DBUS_INTERFACE),
+                                  QLatin1String("PropertiesChanged"),
+                                  this,SLOT(propertiesSwap(QMap<QString,QVariant>)));
+    QDBusConnection::systemBus().disconnect(QLatin1String(NM_DBUS_SERVICE),
+                                      QLatin1String(NM_DBUS_PATH),
+                                      QLatin1String(NM_DBUS_INTERFACE),
+                                      QLatin1String("DeviceAdded"),
+                                    this,SIGNAL(deviceAdded(QDBusObjectPath)));
+    QDBusConnection::systemBus().disconnect(QLatin1String(NM_DBUS_SERVICE),
+                                      QLatin1String(NM_DBUS_PATH),
+                                      QLatin1String(NM_DBUS_INTERFACE),
+                                      QLatin1String("DeviceRemoved"),
+                                      this,SIGNAL(deviceRemoved(QDBusObjectPath)));
 }
 
 bool QNetworkManagerInterface::setConnections()
@@ -261,6 +276,11 @@ QNetworkManagerInterfaceAccessPoint::QNetworkManagerInterfaceAccessPoint(const Q
 
 QNetworkManagerInterfaceAccessPoint::~QNetworkManagerInterfaceAccessPoint()
 {
+    QDBusConnection::systemBus().disconnect(QLatin1String(NM_DBUS_SERVICE),
+                                  path(),
+                                  QLatin1String(NM_DBUS_INTERFACE_ACCESS_POINT),
+                                  QLatin1String("PropertiesChanged"),
+                                  this,SLOT(propertiesSwap(QMap<QString,QVariant>)));
 }
 
 quint32 QNetworkManagerInterfaceAccessPoint::flags() const
@@ -369,6 +389,11 @@ QNetworkManagerInterfaceDevice::QNetworkManagerInterfaceDevice(const QString &de
 
 QNetworkManagerInterfaceDevice::~QNetworkManagerInterfaceDevice()
 {
+    QDBusConnection::systemBus().disconnect(QLatin1String(NM_DBUS_SERVICE),
+                                  path(),
+                                  QLatin1String(NM_DBUS_INTERFACE_DEVICE),
+                                  QLatin1String("PropertiesChanged"),
+                                  this,SLOT(propertiesSwap(QMap<QString,QVariant>)));
 }
 
 QString QNetworkManagerInterfaceDevice::udi() const
@@ -468,6 +493,11 @@ QNetworkManagerInterfaceDeviceWired::QNetworkManagerInterfaceDeviceWired(const Q
 
 QNetworkManagerInterfaceDeviceWired::~QNetworkManagerInterfaceDeviceWired()
 {
+    QDBusConnection::systemBus().disconnect(QLatin1String(NM_DBUS_SERVICE),
+                                  path(),
+                                  QLatin1String(NM_DBUS_INTERFACE_DEVICE_WIRED),
+                                  QLatin1String("PropertiesChanged"),
+                                  this,SLOT(propertiesSwap(QMap<QString,QVariant>)));
 }
 
 QString QNetworkManagerInterfaceDeviceWired::hwAddress() const
@@ -569,6 +599,21 @@ QNetworkManagerInterfaceDeviceWireless::QNetworkManagerInterfaceDeviceWireless(c
 
 QNetworkManagerInterfaceDeviceWireless::~QNetworkManagerInterfaceDeviceWireless()
 {
+    QDBusConnection::systemBus().disconnect(QLatin1String(NM_DBUS_SERVICE),
+                                            path(),
+                                            QLatin1String(NM_DBUS_INTERFACE_DEVICE_WIRELESS),
+                                            QLatin1String("PropertiesChanged"),
+                                            this,SLOT(propertiesSwap(QMap<QString,QVariant>)));
+    QDBusConnection::systemBus().disconnect(QLatin1String(NM_DBUS_SERVICE),
+                                            path(),
+                                            QLatin1String(NM_DBUS_INTERFACE_DEVICE_WIRELESS),
+                                            QLatin1String("AccessPointAdded"),
+                                            this, SLOT(slotAccessPointAdded(QDBusObjectPath)));
+    QDBusConnection::systemBus().disconnect(QLatin1String(NM_DBUS_SERVICE),
+                                            path(),
+                                            QLatin1String(NM_DBUS_INTERFACE_DEVICE_WIRELESS),
+                                            QLatin1String("AccessPointRemoved"),
+                                            this, SLOT(slotAccessPointRemoved(QDBusObjectPath)));
 }
 
 void QNetworkManagerInterfaceDeviceWireless::slotAccessPointAdded(QDBusObjectPath path)
@@ -731,6 +776,11 @@ QNetworkManagerInterfaceDeviceModem::QNetworkManagerInterfaceDeviceModem(const Q
 
 QNetworkManagerInterfaceDeviceModem::~QNetworkManagerInterfaceDeviceModem()
 {
+    QDBusConnection::systemBus().disconnect(QLatin1String(NM_DBUS_SERVICE),
+                                  path(),
+                                  QLatin1String(NM_DBUS_INTERFACE_DEVICE_MODEM),
+                                  QLatin1String("PropertiesChanged"),
+                                  this,SLOT(propertiesSwap(QMap<QString,QVariant>)));
 }
 
 QNetworkManagerInterfaceDeviceModem::ModemCapabilities QNetworkManagerInterfaceDeviceModem::modemCapabilities() const
@@ -778,6 +828,11 @@ QNetworkManagerSettings::QNetworkManagerSettings(const QString &settingsService,
 
 QNetworkManagerSettings::~QNetworkManagerSettings()
 {
+    QDBusConnection::systemBus().disconnect(interfacePath,
+                                                 QLatin1String(NM_DBUS_PATH_SETTINGS),
+                                                 QLatin1String(NM_DBUS_IFACE_SETTINGS),
+                                                 QLatin1String("NewConnection"),
+                                                 this, SIGNAL(newConnection(QDBusObjectPath)));
 }
 
 bool QNetworkManagerSettings::setConnections()
@@ -835,6 +890,16 @@ QNetworkManagerSettingsConnection::QNetworkManagerSettingsConnection(const QStri
 
 QNetworkManagerSettingsConnection::~QNetworkManagerSettingsConnection()
 {
+    QDBusConnection::systemBus().disconnect(service(),
+                                   path(),
+                                   QLatin1String(NM_DBUS_IFACE_SETTINGS_CONNECTION),
+                                   QLatin1String("Updated"),
+                                   this, SIGNAL(updated()));
+     QDBusConnection::systemBus().disconnect(service(),
+                                   path(),
+                                   QLatin1String(NM_DBUS_IFACE_SETTINGS_CONNECTION),
+                                   QLatin1String("Removed"),
+                                   this, SIGNAL(slotSettingsRemoved()));
 }
 
 bool QNetworkManagerSettingsConnection::setConnections()
@@ -991,6 +1056,11 @@ QNetworkManagerConnectionActive::QNetworkManagerConnectionActive(const QString &
 
 QNetworkManagerConnectionActive::~QNetworkManagerConnectionActive()
 {
+    QDBusConnection::systemBus().disconnect(QLatin1String(NM_DBUS_SERVICE),
+                                  path(),
+                                  QLatin1String(NM_DBUS_INTERFACE_ACTIVE_CONNECTION),
+                                  QLatin1String("PropertiesChanged"),
+                                  this,SLOT(propertiesSwap(QMap<QString,QVariant>)));
 }
 
 QDBusObjectPath QNetworkManagerConnectionActive::connection() const
diff --git a/src/plugins/bearer/networkmanager/qnetworkmanagerservice.h b/src/plugins/bearer/networkmanager/qnetworkmanagerservice.h
index 7956705..bc7f099 100644
--- a/src/plugins/bearer/networkmanager/qnetworkmanagerservice.h
+++ b/src/plugins/bearer/networkmanager/qnetworkmanagerservice.h
@@ -322,7 +322,6 @@ public:
                                                     QObject *parent = 0);
     ~QNetworkManagerInterfaceDeviceWireless();
 
-    QDBusObjectPath path() const;
     QList <QDBusObjectPath> getAccessPoints();
 
     QString hwAddress() const;