diff --git a/src/libs/qmldebug/qmldebugclient.cpp b/src/libs/qmldebug/qmldebugclient.cpp
index 1a084122144..d0f4782eb2d 100644
--- a/src/libs/qmldebug/qmldebugclient.cpp
+++ b/src/libs/qmldebug/qmldebugclient.cpp
@@ -295,6 +295,11 @@ bool QmlDebugConnection::isOpen() const
     return d->gotHello;
 }
 
+bool QmlDebugConnection::isConnecting() const
+{
+    return !isOpen() && d->device;
+}
+
 void QmlDebugConnection::close()
 {
     if (d->device && d->device->isOpen())
diff --git a/src/libs/qmldebug/qmldebugclient.h b/src/libs/qmldebug/qmldebugclient.h
index ef1bad9671d..01c871ba09c 100644
--- a/src/libs/qmldebug/qmldebugclient.h
+++ b/src/libs/qmldebug/qmldebugclient.h
@@ -57,6 +57,7 @@ public:
     void connectToHost(const QString &hostName, quint16 port);
 
     bool isOpen() const;
+    bool isConnecting() const;
     void close();
 
 signals:
diff --git a/src/plugins/qmlprofiler/qmlprofilerclientmanager.cpp b/src/plugins/qmlprofiler/qmlprofilerclientmanager.cpp
index 190fec5a5c1..c45a5a55817 100644
--- a/src/plugins/qmlprofiler/qmlprofilerclientmanager.cpp
+++ b/src/plugins/qmlprofiler/qmlprofilerclientmanager.cpp
@@ -215,7 +215,7 @@ void QmlProfilerClientManager::disconnectClientSignals()
 
 void QmlProfilerClientManager::connectToClient()
 {
-    if (!d->connection || d->connection->isOpen())
+    if (!d->connection || d->connection->isOpen() || d->connection->isConnecting())
         return;
 
     d->connection->connectToHost(d->tcpHost, d->tcpPort);
@@ -290,6 +290,10 @@ void QmlProfilerClientManager::logState(const QString &msg)
 
 void QmlProfilerClientManager::retryMessageBoxFinished(int result)
 {
+    QTC_ASSERT(!d->connection->isOpen(), return);
+    if (d->connection->isConnecting())
+        d->connection->disconnect();
+
     switch (result) {
     case QMessageBox::Retry: {
         d->connectionAttempts = 0;