diff --git a/DiscoverUM3Action.py b/DiscoverUM3Action.py
index 55afcd35fa..b492b79d8b 100644
--- a/DiscoverUM3Action.py
+++ b/DiscoverUM3Action.py
@@ -39,3 +39,7 @@ class DiscoverUM3Action(MachineAction):
                 global_container_stack.setMetaDataEntry("key", key)
             else:
                 global_container_stack.addMetaDataEntry("key", key)
+
+        if self._network_plugin:
+            # Ensure that the connection states are refreshed.
+            self._network_plugin.reCheckConnections()
diff --git a/NetworkPrinterOutputDevicePlugin.py b/NetworkPrinterOutputDevicePlugin.py
index 6697e05bd9..ad41d984ae 100644
--- a/NetworkPrinterOutputDevicePlugin.py
+++ b/NetworkPrinterOutputDevicePlugin.py
@@ -19,7 +19,7 @@ class NetworkPrinterOutputDevicePlugin(OutputDevicePlugin):
 
         # Because the model needs to be created in the same thread as the QMLEngine, we use a signal.
         self.addPrinterSignal.connect(self.addPrinter)
-        Application.getInstance().globalContainerStackChanged.connect(self._onGlobalStackChanged)
+        Application.getInstance().globalContainerStackChanged.connect(self.reCheckConnections)
 
     addPrinterSignal = Signal()
 
@@ -34,7 +34,7 @@ class NetworkPrinterOutputDevicePlugin(OutputDevicePlugin):
     def getPrinters(self):
         return self._printers
 
-    def _onGlobalStackChanged(self):
+    def reCheckConnections(self):
         active_machine = Application.getInstance().getGlobalContainerStack()
         if not active_machine:
             return