diff --git a/tools/ac-client/src/ACClientApp.cpp b/tools/ac-client/src/ACClientApp.cpp
index 0d952e8cc1..f174f50ab6 100644
--- a/tools/ac-client/src/ACClientApp.cpp
+++ b/tools/ac-client/src/ACClientApp.cpp
@@ -113,8 +113,6 @@ ACClientApp::ACClientApp(int argc, char* argv[]) :
 
     connect(&domainHandler, SIGNAL(hostnameChanged(const QString&)), SLOT(domainChanged(const QString&)));
     // connect(&domainHandler, SIGNAL(resetting()), SLOT(resettingDomain()));
-    // connect(&domainHandler, SIGNAL(connectedToDomain(const QString&)), SLOT(updateWindowTitle()));
-    // connect(&domainHandler, SIGNAL(disconnectedFromDomain()), SLOT(updateWindowTitle()));
     // connect(&domainHandler, SIGNAL(disconnectedFromDomain()), SLOT(clearDomainOctreeDetails()));
     connect(&domainHandler, &DomainHandler::domainConnectionRefused, this, &ACClientApp::domainConnectionRefused);
 
@@ -123,7 +121,7 @@ ACClientApp::ACClientApp(int argc, char* argv[]) :
     connect(nodeList.data(), &NodeList::nodeActivated, this, &ACClientApp::nodeActivated);
     // connect(nodeList.data(), &NodeList::uuidChanged, getMyAvatar(), &MyAvatar::setSessionUUID);
     // connect(nodeList.data(), &NodeList::uuidChanged, this, &ACClientApp::setSessionUUID);
-    // connect(nodeList.data(), &NodeList::packetVersionMismatch, this, &ACClientApp::notifyPacketVersionMismatch);
+    connect(nodeList.data(), &NodeList::packetVersionMismatch, this, &ACClientApp::notifyPacketVersionMismatch);
 
     nodeList->addSetOfNodeTypesToNodeInterestSet(NodeSet() << NodeType::AudioMixer << NodeType::AvatarMixer
                                                  << NodeType::EntityServer << NodeType::AssetServer << NodeType::MessagesMixer);
@@ -208,6 +206,13 @@ void ACClientApp::timedOut() {
     finish(1);
 }
 
+void ACClientApp::notifyPacketVersionMismatch() {
+    if (_verbose) {
+        qDebug() << "packet version mismatch";
+    }
+    finish(1);
+}
+
 void ACClientApp::finish(int exitCode) {
     auto nodeList = DependencyManager::get<NodeList>();
 
diff --git a/tools/ac-client/src/ACClientApp.h b/tools/ac-client/src/ACClientApp.h
index 36de592401..f6c726dfbc 100644
--- a/tools/ac-client/src/ACClientApp.h
+++ b/tools/ac-client/src/ACClientApp.h
@@ -27,23 +27,19 @@ public:
     ACClientApp(int argc, char* argv[]);
     ~ACClientApp();
 
-    const int stunFailureExitStatus { 1 };
-    const int iceFailureExitStatus { 2 };
-    const int domainPingExitStatus { 3 };
-
 private slots:
     void domainConnectionRefused(const QString& reasonMessage, int reasonCodeInt, const QString& extraInfo);
     void domainChanged(const QString& domainHostname);
     void nodeAdded(SharedNodePointer node);
     void nodeActivated(SharedNodePointer node);
     void nodeKilled(SharedNodePointer node);
+    void notifyPacketVersionMismatch();
 
 private:
     NodeList* _nodeList;
     void timedOut();
     void finish(int exitCode);
     bool _verbose;
-    QTimer* _pingDomainTimer { nullptr };
 
     bool _sawEntityServer { false };
     bool _sawAudioMixer { false };