diff --git a/plugins/UM3NetworkPrinting/NetworkPrinterOutputDevice.py b/plugins/UM3NetworkPrinting/NetworkPrinterOutputDevice.py
index 18bf22d18d..2a9dedc20c 100755
--- a/plugins/UM3NetworkPrinting/NetworkPrinterOutputDevice.py
+++ b/plugins/UM3NetworkPrinting/NetworkPrinterOutputDevice.py
@@ -188,9 +188,18 @@ class NetworkPrinterOutputDevice(PrinterOutputDevice):
         else:
             self._updatePrinterType("unknown")
 
+        Application.getInstance().getOutputDeviceManager().outputDevicesChanged.connect(self._onOutputDevicesChanged)
+
     def _onNetworkAccesibleChanged(self, accessible):
         Logger.log("d", "Network accessible state changed to: %s", accessible)
 
+    ##  Triggered when the output device manager changes devices.
+    #
+    #   This is how we can detect that our device is no longer active now.
+    def _onOutputDevicesChanged(self):
+        if self.getId() not in Application.getInstance().getOutputDeviceManager().getOutputDeviceIds():
+            self.stopCamera()
+
     def _onAuthenticationTimer(self):
         self._authentication_counter += 1
         self._authentication_requested_message.setProgress(self._authentication_counter / self._max_authentication_counter * 100)