diff --git a/src/gui/qt/gamelobbydialog/gamelobbydialogimpl.cpp b/src/gui/qt/gamelobbydialog/gamelobbydialogimpl.cpp
index d7d9378f..0fc1b29f 100644
--- a/src/gui/qt/gamelobbydialog/gamelobbydialogimpl.cpp
+++ b/src/gui/qt/gamelobbydialog/gamelobbydialogimpl.cpp
@@ -15,7 +15,7 @@
 #include "gamedata.h"
 
 gameLobbyDialogImpl::gameLobbyDialogImpl(QWidget *parent, ConfigFile *c)
- : QDialog(parent), myW(NULL), myConfig(c), currentGameName(""), isAdmin(false)
+ : QDialog(parent), myW(NULL), mySession(NULL), myConfig(c), currentGameName(""), isAdmin(false)
 {
     setupUi(this);
 
@@ -164,6 +164,7 @@ void gameLobbyDialogImpl::addConnectedPlayer(QString playerName, int rights) {
 	QTreeWidgetItem *item = new QTreeWidgetItem(treeWidget_connectedPlayers,0);
 	item->setData(0, 0, playerName);
 
+	assert(mySession);
 	GameInfo info = mySession->getClientGameInfo(currentGameName.toUtf8().constData());
 
 	if(treeWidget_connectedPlayers->topLevelItemCount() != info.data.maxNumberOfPlayers) {
diff --git a/src/gui/qt/mainwindow/mainwindowimpl.cpp b/src/gui/qt/mainwindow/mainwindowimpl.cpp
index 68a6d6fe..0f3bc97c 100755
--- a/src/gui/qt/mainwindow/mainwindowimpl.cpp
+++ b/src/gui/qt/mainwindow/mainwindowimpl.cpp
@@ -785,6 +785,8 @@ void mainWindowImpl::callCreateNetworkGameDialog() {
 		gameData.guiSpeed = myCreateNetworkGameDialog->spinBox_gameSpeed->value();
 		gameData.playerActionTimeoutSec = myCreateNetworkGameDialog->spinBox_netTimeOutPlayerAction->value();
 
+		myGameLobbyDialog->setSession(&getSession());
+		myGameLobbyDialog->treeWidget_GameList->clear();
 		myStartNetworkGameDialog->setSession(&getSession());
 		myStartNetworkGameDialog->treeWidget->clear();
 
@@ -810,6 +812,8 @@ void mainWindowImpl::callJoinNetworkGameDialog() {
 		if (myServerGuiInterface.get())
 			myServerGuiInterface->getSession().terminateNetworkServer();
 
+		myGameLobbyDialog->setSession(&getSession());
+		myGameLobbyDialog->treeWidget_GameList->clear();
 		myStartNetworkGameDialog->setSession(&getSession());
 		myStartNetworkGameDialog->treeWidget->clear();
 		// Maybe use QUrl::toPunycode.