diff -r bb7671829935 -r 66bc20d089fc QTfrontend/net/tcpBase.cpp
--- a/QTfrontend/net/tcpBase.cpp	Mon Nov 19 23:43:45 2012 +0400
+++ b/QTfrontend/net/tcpBase.cpp	Tue Nov 20 00:10:12 2012 +0400
@@ -38,7 +38,8 @@
         IPCSocket->deleteLater();
 }
 
-TCPBase::TCPBase(bool demoMode) :
+TCPBase::TCPBase(bool demoMode, QObject *parent) :
+    QObject(parent),
     m_hasStarted(false),
     m_isDemoMode(demoMode),
     IPCSocket(0)
@@ -144,9 +145,12 @@
     }
     else
     {
-        if(couldCancelPreviousRequest && srvsList.last()->couldBeRemoved())
+        TCPBase * last = srvsList.last();
+        if(couldCancelPreviousRequest
+            && last->couldBeRemoved()
+            && (last->parent() == parent()))
         {
-            TCPBase * last = srvsList.takeLast();
+            srvsList.removeLast();
             last->deleteLater();
             Start(couldCancelPreviousRequest);
         } else