diff --git a/src/backend/dbus-interface/kylinnetworkdeviceresource.cpp b/src/backend/dbus-interface/kylinnetworkdeviceresource.cpp
index eb8cc2c4..8509f287 100644
--- a/src/backend/dbus-interface/kylinnetworkdeviceresource.cpp
+++ b/src/backend/dbus-interface/kylinnetworkdeviceresource.cpp
@@ -453,7 +453,7 @@ int KyNetworkDeviceResourse::getWirelessDeviceCapability(const QString deviceNam
             qobject_cast<NetworkManager::WirelessDevice *>(connectDevice.data());
 
         int cap = 0x00;
-        if (wirelessDevicePtr->wirelessCapabilities() & NetworkManager::WirelessDevice::AdhocCap) {
+        if (wirelessDevicePtr->wirelessCapabilities() & NetworkManager::WirelessDevice::ApCap) {
             cap = cap | 0x02;
         } else {
             return 0x01;
diff --git a/src/backend/dbus-interface/kywirelessnetresource.cpp b/src/backend/dbus-interface/kywirelessnetresource.cpp
index 6196d55c..fc020d68 100644
--- a/src/backend/dbus-interface/kywirelessnetresource.cpp
+++ b/src/backend/dbus-interface/kywirelessnetresource.cpp
@@ -295,6 +295,10 @@ QString KyWirelessNetResource::getDeviceIFace(NetworkManager::ActiveConnection::
     NetworkManager::Device:: Ptr devicePtr =
                 m_networkResourceInstance->findDeviceUni(ifaceUni);
 
+    if (devicePtr.isNull()) {
+        return QString();
+    }
+
     return devicePtr->interfaceName();
 }