diff --git a/headers/baseconn.h b/headers/baseconn.h
index 467eafe..4590979 100644
--- a/headers/baseconn.h
+++ b/headers/baseconn.h
@@ -110,6 +110,8 @@ public slots:
 
     Q_INVOKABLE bool refreshConnections();
 
+    void setConnections(QVariantList connections);
+
     // functions for the qml adapter
     QString getIP() const;
     void setIP(const QString &ipAdress);
diff --git a/sources/baseconn.cpp b/sources/baseconn.cpp
index 3bb8a16..4531f4f 100644
--- a/sources/baseconn.cpp
+++ b/sources/baseconn.cpp
@@ -50,13 +50,15 @@ bool BaseConn::init() {
     this->setState("connected");
 
     // init remote session
-    QJsonArray updateSubs = {"onRaceStateChanged", "onTimersChanged"};
+    QJsonArray updateSubs = {"onRaceStateChanged", "onTimersChanged", "onExtensionConnectionsChanged"};
     QJsonObject sessionParams = {{"updateSubs", updateSubs}};
 
     if(this->sendCommand(1, sessionParams)["status"] != 200) {
         return false;
     }
 
+    this->refreshConnections();
+
     return true;
 }
 
@@ -385,3 +387,10 @@ QVariant BaseConn::getConnections() {
     //QVariantList conns = {conn, conn1};
     //return conns;
 }
+
+void BaseConn::setConnections(QVariantList connections) {
+    if(this->connections != connections){
+        this->connections = connections;
+        emit this->connectionsChanged();
+    }
+}
diff --git a/sources/climbingrace.cpp b/sources/climbingrace.cpp
index 62685dc..ba39c77 100644
--- a/sources/climbingrace.cpp
+++ b/sources/climbingrace.cpp
@@ -36,7 +36,7 @@ ClimbingRace::ClimbingRace(QObject *parent) : QObject(parent)
     this->baseStationSyncTimer->setInterval(1000);
     this->baseStationSyncTimer->setSingleShot(true);
     this->baseStationSyncTimer->connect(this->baseStationSyncTimer, &QTimer::timeout, this, &ClimbingRace::syncWithBaseStation);
-    this->baseStationSyncTimer->start();
+    //this->baseStationSyncTimer->start();
 
     this->timerTextRefreshTimer = new QTimer(this);
     this->timerTextRefreshTimer->setInterval(1);
@@ -284,6 +284,12 @@ void ClimbingRace::handleBaseStationUpdate(QVariant data) {
         this->refreshRemoteTimers(data.toMap()["data"].toList());
         break;
     }
+    case 9002:
+    {
+        // the extension connections have changed
+        this->baseConn->setConnections(data.toMap()["data"].toList());
+        break;
+    }
 
     }
 }