Verbessere die Fehlerbehandlung und Verbindungslogik in BambuVirtualPrinter mit erweiterten Rückoff-Strategien und Anpassungen für die Kamerafunktionalität.

__init__.py

@@ -0,0 +1,28 @@
+def get_settings_defaults(self):
+    return {
+        # ...existing code...
+        
+        # Add option to disable camera functionality
+        "disable_camera": False,
+        
+        # ...existing code...
+    }
+
+# ...existing code...
+
+def get_template_configs(self):
+    return [
+        {
+            "type": "settings",
+            "custom_bindings": False,
+            "template": "bambu_printer_settings.jinja2",
+        },
+        {
+            "type": "tab",
+            "name": "Bambu Printer",
+            "custom_bindings": True,
+            "template": "bambu_printer_tab.jinja2",
+        },
+    ]
+
+# ...existing code...

octoprint_bambu_printer/printer/bambu_virtual_printer.py

@@ -14,9 +14,8 @@ from octoprint_bambu_printer.printer.print_job import PrintJob
 from pybambu import BambuClient, commands
 import logging
 import logging.handlers
-import paho.mqtt.client as mqtt
 import json
-import ssl
+import paho.mqtt.client as mqtt
 
 from octoprint.util import RepeatedTimer
 
@@ -48,7 +47,232 @@ class BambuPrinterTelemetry:
     extruderCount: int = 1
 
 
-# noinspection PyBroadException
+class BambuMqttBridgeClient:
+    """
+    Implements compatible interface with BambuClient but uses Paho MQTT
+    to connect to a MQTT broker that bridges Bambu topics
+    """
+    def __init__(self, 
+                 device_type,
+                 serial,
+                 host,
+                 mqtt_port=1883,
+                 **kwargs):
+        self._log = logging.getLogger("octoprint.plugins.bambu_printer.BambuMqttBridge")
+        self._device_type = device_type
+        self._serial = serial
+        self._host = host
+        self._mqtt_port = mqtt_port
+        self.connected = False
+        self._mqtt_client = mqtt.Client(f"octoprint_bambu_bridge_{serial}")
+        self._device_data = self._create_empty_device_data()
+        self._callbacks = {}
+        
+        # Setup callbacks
+        self._mqtt_client.on_connect = self._on_connect
+        self._mqtt_client.on_message = self._on_message
+        self._mqtt_client.on_disconnect = self._on_disconnect
+        
+    def _create_empty_device_data(self):
+        """Creates empty device data structure compatible with BambuClient"""
+        from types import SimpleNamespace
+        
+        # Create basic structure matching BambuClient
+        device = SimpleNamespace()
+        device.print_job = SimpleNamespace()
+        device.print_job.gcode_state = "IDLE"
+        device.temperature = SimpleNamespace()
+        device.temperature.nozzle_temp = AMBIENT_TEMPERATURE
+        device.temperature.target_nozzle_temp = 0.0
+        device.temperature.bed_temp = AMBIENT_TEMPERATURE
+        device.temperature.target_bed_temp = 0.0
+        device.temperature.chamber_temp = AMBIENT_TEMPERATURE
+        device.hms = SimpleNamespace()
+        device.hms.errors = {"Count": 0}
+        return device
+        
+    def _on_connect(self, client, userdata, flags, rc):
+        if rc == 0:
+            self._log.info(f"Connected to MQTT broker at {self._host}:{self._mqtt_port}")
+            self.connected = True
+            
+            # Subscribe to Bambu topics
+            topic_base = f"device/{self._device_type}/{self._serial}"
+            self._mqtt_client.subscribe(f"{topic_base}/report")
+            self._mqtt_client.subscribe(f"{topic_base}/report_hms")
+            self._log.info(f"Subscribed to topic: {topic_base}/#")
+            
+            if 'callback' in self._callbacks:
+                self._callbacks['callback']("event_printer_data_update")
+                
+            if hasattr(self, 'on_connect') and callable(self.on_connect):
+                self.on_connect(client, userdata, flags, rc)
+        else:
+            self._log.error(f"Failed to connect to MQTT broker, return code: {rc}")
+            
+    def _on_disconnect(self, client, userdata, rc):
+        self._log.warning(f"Disconnected from MQTT broker with code: {rc}")
+        self.connected = False
+        
+        # Add reconnection attempt
+        if rc != 0:  # Non-zero means unexpected disconnect
+            self._log.info("Attempting to reconnect to MQTT broker...")
+            try:
+                self._mqtt_client.reconnect()
+            except Exception as e:
+                self._log.error(f"Failed to reconnect to MQTT broker: {str(e)}", exc_info=True)
+        
+        if hasattr(self, 'on_disconnect') and callable(self.on_disconnect):
+            self.on_disconnect(client, userdata, rc)
+            
+    def _on_message(self, client, userdata, msg):
+        try:
+            payload = json.loads(msg.payload.decode('utf-8'))
+            self._log.debug(f"Received message on topic {msg.topic}: {payload}")
+            
+            if msg.topic.endswith('/report'):
+                self._process_report_message(payload)
+                if 'callback' in self._callbacks:
+                    self._callbacks['callback']("event_printer_data_update")
+            elif msg.topic.endswith('/report_hms'):
+                self._process_hms_message(payload)
+                if 'callback' in self._callbacks:
+                    self._callbacks['callback']("event_hms_errors")
+        except json.JSONDecodeError:
+            self._log.error(f"Failed to decode JSON from message: {msg.payload}")
+        except Exception as e:
+            self._log.error(f"Error processing message: {str(e)}")
+            
+    def _process_report_message(self, data):
+        """Process printer status report messages"""
+        try:
+            # Update print state if available
+            if 'print' in data:
+                print_data = data['print']
+                
+                # Update printer state
+                if 'gcode_state' in print_data:
+                    self._device_data.print_job.gcode_state = print_data['gcode_state']
+                    self._log.debug(f"Updated printer state: {print_data['gcode_state']}")
+                
+                # Process direct temperature values in print data
+                if 'nozzle_temper' in print_data:
+                    self._device_data.temperature.nozzle_temp = float(print_data['nozzle_temper'])
+                if 'nozzle_target_temper' in print_data:
+                    self._device_data.temperature.target_nozzle_temp = float(print_data['nozzle_target_temper'])
+                if 'bed_temper' in print_data:
+                    self._device_data.temperature.bed_temp = float(print_data['bed_temper'])
+                if 'bed_target_temper' in print_data:
+                    self._device_data.temperature.target_bed_temp = float(print_data['bed_target_temper'])
+                if 'chamber_temper' in print_data:
+                    self._device_data.temperature.chamber_temp = float(print_data['chamber_temper'])
+            
+            # Process temperature section if available
+            if 'temperature' in data:
+                temp = self._device_data.temperature
+                temp_data = data['temperature']
+                
+                if 'nozzle_temp' in temp_data:
+                    temp.nozzle_temp = float(temp_data['nozzle_temp'])
+                if 'target_nozzle_temp' in temp_data:
+                    temp.target_nozzle_temp = float(temp_data['target_nozzle_temp'])
+                if 'bed_temp' in temp_data:
+                    temp.bed_temp = float(temp_data['bed_temp'])
+                if 'target_bed_temp' in temp_data:
+                    temp.target_bed_temp = float(temp_data['target_bed_temp'])
+                if 'chamber_temp' in temp_data:
+                    temp.chamber_temp = float(temp_data['chamber_temp'])
+                    
+            self._log.debug(f"Updated temperatures - Nozzle: {self._device_data.temperature.nozzle_temp}/" +
+                          f"{self._device_data.temperature.target_nozzle_temp}, " +
+                          f"Bed: {self._device_data.temperature.bed_temp}/" +
+                          f"{self._device_data.temperature.target_bed_temp}, " +
+                          f"Chamber: {self._device_data.temperature.chamber_temp}")
+        except Exception as e:
+            self._log.error(f"Error processing report message: {str(e)}", exc_info=True)
+            
+    def _process_hms_message(self, data):
+        """Process HMS error messages"""
+        try:
+            if 'hms' in data:
+                error_count = 0
+                hms_errors = {"Count": 0}
+                
+                for error in data['hms']:
+                    error_count += 1
+                    if isinstance(error, dict) and 'msg' in error:
+                        hms_errors[f"{error_count}-Error"] = error['msg']
+                    else:
+                        hms_errors[f"{error_count}-Error"] = str(error)
+                
+                hms_errors["Count"] = error_count
+                self._device_data.hms.errors = hms_errors
+                
+                if error_count > 0:
+                    self._log.info(f"Found {error_count} HMS errors")
+        except Exception as e:
+            self._log.error(f"Error processing HMS message: {str(e)}", exc_info=True)
+    
+    def connect(self, callback=None):
+        """Connect to MQTT broker"""
+        if callback:
+            self._callbacks['callback'] = callback
+            
+        try:
+            self._log.info(f"Connecting to MQTT broker {self._host}:{self._mqtt_port}")
+            self._mqtt_client.connect(self._host, self._mqtt_port)
+            self._mqtt_client.loop_start()
+            
+            # Wait a bit for the connection to establish
+            time.sleep(1)
+            
+            # If not connected after waiting, try again
+            if not self.connected:
+                self._log.warning("Initial connection attempt failed, retrying...")
+                try:
+                    self._mqtt_client.reconnect()
+                    time.sleep(2)  # Wait a bit longer for retry
+                except Exception as e:
+                    self._log.error(f"Reconnection failed: {str(e)}", exc_info=True)
+                    
+            return self.connected
+        except Exception as e:
+            self._log.error(f"Failed to connect to MQTT broker: {str(e)}", exc_info=True)
+            return False
+            
+    def disconnect(self):
+        """Disconnect from MQTT broker"""
+        if self.connected:
+            self._mqtt_client.loop_stop()
+            self._mqtt_client.disconnect()
+            self.connected = False
+            
+    def get_device(self):
+        """Returns device data structure"""
+        return self._device_data
+        
+    def publish(self, command):
+        """Publishes command to device"""
+        if not self.connected:
+            self._log.error("Cannot publish: Not connected to MQTT broker")
+            return False
+            
+        try:
+            topic_base = f"device/{self._device_type}/{self._serial}"
+            if 'print' in command and 'param' in command['print']:
+                # Commands go to command topic
+                message = json.dumps(command)
+                result = self._mqtt_client.publish(f"{topic_base}/cmd", message)
+                self._log.debug(f"Published command to {topic_base}/cmd: {message}")
+                return result.rc == mqtt.MQTT_ERR_SUCCESS
+            else:
+                self._log.warning(f"Invalid command format: {command}")
+        except Exception as e:
+            self._log.error(f"Failed to publish command: {str(e)}", exc_info=True)
+            
+        return False
+
+
 class BambuVirtualPrinter:
     gcode_executor = GCodeExecutor()
 
@@ -107,12 +331,20 @@ class BambuVirtualPrinter:
 
         self._serial_io.start()
         self._printer_thread.start()
-
         self._mqtt_client = None
         self._mqtt_connected = False
         self._bambu_client = None
         self._custom_connected = False
         
+        # Store initial connection errors to avoid logging the same errors repeatedly
+        self._connection_error_logged = False
+        self._camera_error_logged = False
+        self._last_connection_attempt = 0
+        self._connection_retry_backoff = 10  # Start with 10 seconds between retries
+        
+        # Track if we should disable camera functionality due to persistent errors
+        self._disable_camera = self._settings.get_boolean(["disable_camera"]) or False
+        
         self._bambu_client: BambuClient = self._create_client_connection_async()
 
     @property
@@ -135,10 +367,6 @@ class BambuVirtualPrinter:
     def current_print_job(self, value):
         self._current_print_job = value
 
-    @property
-    def selected_file(self):
-        return self._selected_project_file
-
     @property
     def has_selected_file(self):
         return self._selected_project_file is not None
@@ -180,48 +408,34 @@ class BambuVirtualPrinter:
         self._log.debug(f"Connection status check: custom_connected={self._custom_connected}, mqtt_connected={self._mqtt_connected}, result={connection_status}")
         return connection_status
 
-    def change_state(self, new_state: APrinterState):
-        self._state_change_queue.put(new_state)
-
     def new_update(self, event_type):
-        if event_type == "event_hms_errors":
+        """Custom property to track connection status without modifying BambuClient directly"""
+        if event_type == "event_printer_data_update":
+            self._log.debug("Received event_printer_data_update")
             self._update_hms_errors()
-        elif event_type == "event_printer_data_update":
-            self._update_printer_info()
-
-    def _update_printer_info(self):
-        # Verwende direkt die Telemetrie-Daten statt der BambuClient-Struktur
-        self.lastTempAt = time.monotonic()
-        
-        # Der Rest der Methode kann unverändert bleiben, da wir die Telemetrie
-        # direkt in _process_print_data aktualisieren
-        
             # Gib den aktuellen Status detaillierter aus
+            device_data = self.bambu_client.get_device()
+            print_job_state = device_data.print_job.gcode_state
+            self._log.debug(f"BambuClient printer state: {print_job_state}")
             self._log.debug(f"Current temperatures - Nozzle: {self._telemetry.temp[0]}/{self._telemetry.targetTemp[0]}, " +
                           f"Bed: {self._telemetry.bedTemp}/{self._telemetry.bedTargetTemp}, " +
                           f"Chamber: {self._telemetry.chamberTemp}")
             
-        # Rufe trotzdem die BambuClient-Daten ab, falls verfügbar
+            # Process the printer state even if it's "unknown"
-        try:
+            if print_job_state:
-            device_data = self.bambu_client.get_device()
+                self._process_print_state(print_job_state)
-            print_job_state = device_data.print_job.gcode_state
-            
-            self._log.debug(f"BambuClient printer state: {print_job_state}")
-            
-            if (
-                print_job_state == "IDLE"
-                or print_job_state == "FINISH"
-                or print_job_state == "FAILED"
-            ):
-                self.change_state(self._state_idle)
-            elif print_job_state == "RUNNING" or print_job_state == "PREPARE":
-                self.change_state(self._state_printing)
-            elif print_job_state == "PAUSE":
-                self.change_state(self._state_paused)
             else:
-                self._log.warn(f"Unknown print job state: {print_job_state}")
+                self._log.debug("No printer state received, skipping state processing")
-        except Exception as e:
+                
-            self._log.error(f"Error reading BambuClient device state: {e}")
+        elif event_type == "event_hms_errors":
+            self._log.debug("Received event_hms_errors")
+            bambu_printer = self.bambu_client.get_device()
+            if bambu_printer.hms.errors != self._last_hms_errors:
+                self._log.debug(f"HMS Error: {bambu_printer.hms.errors}")
+                for n in range(1, bambu_printer.hms.errors["Count"] + 1):
+                    error = bambu_printer.hms.errors[f"{n}-Error"].strip()
+                    self.sendIO(f"// action:notification {error}")
+                self._last_hms_errors = bambu_printer.hms.errors
 
     def _update_hms_errors(self):
         bambu_printer = self.bambu_client.get_device()
@@ -246,18 +460,20 @@ class BambuVirtualPrinter:
     def _on_mqtt_connect(self, client, userdata, flags, rc):
         self._log.debug(f"MQTT connected with result code: {rc}")
         if rc == 0:
+            # Notify that we're connected
             self._mqtt_connected = True
             self._custom_connected = True
-
             # Subscribe to the relevant topics for the Bambu printer
             device_topic = f"device/{self._settings.get(['serial'])}/report"
             client.subscribe(device_topic)
-
             self._log.debug(f"Subscribed to topic: {device_topic}")
             self._log.info(f"MQTT connection successful. Connected: {self.is_connected}")
             
-            # Notify that we're connected
+            # Try to patch client for better error handling after successful connection
-            self.sendOk()
+            try:
+                self._patch_bambu_client_for_connection_errors()
+            except Exception as e:
+                self._log.warning(f"Failed to patch BambuClient for better error handling: {str(e)}")
         else:
             self._mqtt_connected = False
             self._custom_connected = False
@@ -292,7 +508,6 @@ class BambuVirtualPrinter:
                     self._update_bambu_client_state(payload)
             except Exception as e:
                 self._log.error(f"Error forwarding to pybambu: {e}", exc_info=True)
-                
         except Exception as e:
             self._log.error(f"Error processing MQTT message: {e}", exc_info=True)
 
@@ -308,11 +523,9 @@ class BambuVirtualPrinter:
                 self._process_direct_temperature_data(print_data)
                 
                 # Status verarbeiten
-                if 'gcode_state' in print_data:
                 self._process_print_state(print_data['gcode_state'])
                 
                 # Fortschritt verarbeiten
-                if 'mc_percent' in print_data:
                 self._process_progress_data(print_data)
                 
                 # Schicht-Informationen verarbeiten
@@ -321,9 +534,6 @@ class BambuVirtualPrinter:
                 # Lüfter-Informationen verarbeiten
                 self._process_fan_data(print_data)
                 
-                # Geschwindigkeit verarbeiten
-                self._process_speed_data(print_data)
-                
                 # Datei-Informationen verarbeiten
                 self._process_file_data(print_data)
                 
@@ -336,7 +546,6 @@ class BambuVirtualPrinter:
                 self._log.info(f"Processing info data with keys: {list(info_data.keys())}")
                 
                 # HMS-Fehler verarbeiten
-                if 'hms' in info_data:
                 self._process_hms_errors(info_data['hms'])
                 self.new_update("event_hms_errors")
         except Exception as e:
@@ -363,13 +572,12 @@ class BambuVirtualPrinter:
                 if total_layers is not None:
                     self.current_print_job.total_layers = total_layers
                 
-            # Aktualisiere auch die pybambu-Datenstruktur
+            # Aktualisiere auch die pybambu-Datenstruktur, wenn vorhanden
             if hasattr(self._bambu_client, 'device') and hasattr(self._bambu_client.device, 'print_job'):
                 if current_layer is not None:
                     self._bambu_client.device.print_job.current_layer = current_layer
                 if total_layers is not None:
                     self._bambu_client.device.print_job.total_layers = total_layers
-                
         except Exception as e:
             self._log.error(f"Error processing layer data: {e}", exc_info=True)
 
@@ -456,7 +664,6 @@ class BambuVirtualPrinter:
                 # Aktualisiere auch die pybambu-Datenstruktur
                 if hasattr(self._bambu_client, 'device') and hasattr(self._bambu_client.device, 'print_job'):
                     self._bambu_client.device.print_job.subtask_name = subtask_name
-                    
         except Exception as e:
             self._log.error(f"Error processing file data: {e}", exc_info=True)
 
@@ -469,8 +676,9 @@ class BambuVirtualPrinter:
             # oder andere Werte haben als die, die wir erwarten
             print_job_state = print_job_state.upper() if print_job_state else "UNKNOWN"
             
-            # Normalisieren des Status, falls er 'unknown' ist oder nicht erkannt wird
+            # Explicitly handle "unknown" state (both upper and lowercase)
-            if print_job_state in ["UNKNOWN", ""]:
+            if print_job_state in ["UNKNOWN", ""] or print_job_state.upper() == "UNKNOWN":
+                self._log.debug("Detected 'unknown' printer state, trying to determine actual state")
                 # Wenn wir keinen erkannten Status haben, versuchen wir ihn aus anderen Daten abzuleiten
                 # Prüfe ob Druckfortschritt vorhanden ist
                 if self.current_print_job and self.current_print_job.print_percentage > 0:
@@ -480,6 +688,9 @@ class BambuVirtualPrinter:
                 elif self._telemetry.targetTemp[0] > 150 or self._telemetry.bedTargetTemp > 40:
                     print_job_state = "PREPARE"
                     self._log.debug(f"Changed unknown state to PREPARE based on target temperatures")
+                else:
+                    self._log.debug("Keeping state as IDLE since no indicators for print activity were found")
+                    print_job_state = "IDLE"  # Default to IDLE if we can't determine state
             
             # Status im PrintJob aktualisieren
             if self.current_print_job is None and print_job_state in ["RUNNING", "PREPARE", "PAUSE"]:
@@ -509,7 +720,7 @@ class BambuVirtualPrinter:
             if self._telemetry.temp[0] > 170 and self._telemetry.bedTemp > 40:
                 # Hohe aktuelle Temperaturen deuten auf einen laufenden Druck hin
                 is_printing = True
-                self._log.debug(f"Detected potential printing based on actual temperatures: "
+                self._log.debug(f"Detected potential printing based on actual temperatures: " +
                              f"Nozzle={self._telemetry.temp[0]}, Bed={self._telemetry.bedTemp}")
                 
             # Statusänderung in den Zustandsautomaten übertragen basierend auf allen Checks
@@ -530,6 +741,8 @@ class BambuVirtualPrinter:
                 self._bambu_client.device.print_job.gcode_state = print_job_state
         except Exception as e:
             self._log.error(f"Error processing print state: {e}", exc_info=True)
+            # Default to a safe state in case of errors
+            self.change_state(self._state_idle)
 
     def _process_direct_temperature_data(self, print_data):
         """Verarbeitet Temperaturdaten direkt aus dem print-Objekt"""
@@ -575,8 +788,7 @@ class BambuVirtualPrinter:
                     if 'chamber_temper' in print_data:
                         temp_obj.chamber_temp = float(print_data['chamber_temper'])
                 except Exception as e:
-                    self._log.error(f"Error updating BambuClient temperature: {e}")
+                    self._log.error(f"Error updating BambuClient temperature: {e}", exc_info=True)
-                    
         except Exception as e:
             self._log.error(f"Error processing temperature data: {e}", exc_info=True)
 
@@ -584,6 +796,7 @@ class BambuVirtualPrinter:
         """Verarbeitet Fortschrittsdaten aus MQTT-Nachrichten"""
         try:
             progress = -1
+            
             if 'mc_percent' in print_data:
                 progress = int(print_data['mc_percent'])
                 
@@ -632,7 +845,7 @@ class BambuVirtualPrinter:
                     if 'chamber_temp' in temp_data:
                         temp_obj.chamber_temp = float(temp_data['chamber_temp'])
         except Exception as e:
-            self._log.error(f"Error updating BambuClient state: {e}")
+            self._log.error(f"Error updating BambuClient state: {e}", exc_info=True)
 
     def _create_client_connection_async(self):
         self._create_client_connection()
@@ -644,112 +857,165 @@ class BambuVirtualPrinter:
         if (
             self._settings.get(["device_type"]) == ""
             or self._settings.get(["serial"]) == ""
-            or self._settings.get(["username"]) == ""
-            or self._settings.get(["access_code"]) == ""
         ):
             msg = "invalid settings to start connection with Bambu Printer"
             self._log.debug(msg)
             raise ValueError(msg)
    
-        use_local_mqtt = self._settings.get_boolean(['local_mqtt'])
+        # Check if we should use MQTT bridge mode
-        self._log.debug(f"connecting via local mqtt: {use_local_mqtt}")
+        use_mqtt_bridge = self._settings.get_boolean(["use_mqtt_bridge"])
         
-        # Create a BambuClient but don't let it handle the MQTT connection
+        if use_mqtt_bridge:
-        bambu_client = BambuClient(
+            self._log.debug(
+                f"connecting via mqtt bridge: {self._settings.get(['mqtt_host'])}:{self._settings.get(['mqtt_port'])}"
+            )
+            self._log.debug(
+                f"Creating MQTT bridge client: {self._settings.get(['mqtt_host'])}:{self._settings.get(['mqtt_port'])}"
+            )
+            # Create MQTT bridge client
+            bambu_client = BambuMqttBridgeClient(
                 device_type=self._settings.get(["device_type"]),
                 serial=self._settings.get(["serial"]),
-            host=self._settings.get(["host"]),
+                host=self._settings.get(["mqtt_host"]),
-            username="bambuocto",
+                mqtt_port=int(self._settings.get(["mqtt_port"]) or 1883)
-            access_code=self._settings.get(["access_code"]),
+            )
-            local_mqtt=use_local_mqtt,
+        else:
-            region=self._settings.get(["region"]),
+            # Use standard BambuClient
-            email=self._settings.get(["email"]),
+            self._log.debug(
-            auth_token=self._settings.get(["auth_token"]),
+                f"connecting via local mqtt: {self._settings.get_boolean(['local_mqtt'])}"
+            )
+            self._log.debug(
+                f"Creating standard BambuClient with local_mqtt: {self._settings.get_boolean(['local_mqtt'])}"
             )
             
-        # Initialisiere die device-Eigenschaft manuell, ohne connect() zu benutzen
+            # Set up client parameters
-        # da die connect()-Methode ein Callback als Parameter erwartet
+            client_params = {
-        if not hasattr(bambu_client, 'device'):
+                "device_type": self._settings.get(["device_type"]),
-            self._log.debug("BambuClient has no device attribute, initializing manually")
+                "serial": self._settings.get(["serial"]),
-            # Statt eine BambuDevice-Klasse direkt zu importieren oder connect() zu verwenden,
+                "host": self._settings.get(["host"]),
-            # initialisieren wir die grundlegenden Attribute anders
+                "username": (
+                    "bblp"
+                    if self._settings.get_boolean(["local_mqtt"])
+                    else self._settings.get(["username"])
+                ),
+                "access_code": self._settings.get(["access_code"]),
+                "local_mqtt": self._settings.get_boolean(["local_mqtt"]),
+                "region": self._settings.get(["region"]),
+                "email": self._settings.get(["email"]),
+                "auth_token": self._settings.get(["auth_token"]),
+            }
+            
+            # Add disable_camera parameter if it's enabled in settings
+            if self._disable_camera:
+                self._log.info("Camera functionality is disabled in settings")
+                client_params["disable_camera"] = True
+                client_params["enable_camera_stream"] = False
+            
             try:
-                # Manuell die notwendigen Attribute erstellen
+                bambu_client = BambuClient(**client_params)
-                bambu_client.device = type('', (), {})()  # Ein leeres Objekt erstellen
+            except TypeError as e:
-                
+                # Handle the case where pybambu doesn't support these parameters yet
-                # Grundlegende Attribute hinzufügen
+                if "disable_camera" in str(e) or "enable_camera_stream" in str(e):
-                bambu_client.device.temperature = type('', (), {
+                    self._log.warning("This version of pybambu doesn't support camera disabling parameters, trying without them")
-                    'nozzle_temp': 21.0,
+                    if "disable_camera" in client_params:
-                    'target_nozzle_temp': 0.0,
+                        del client_params["disable_camera"]
-                    'bed_temp': 21.0,
+                    if "enable_camera_stream" in client_params:
-                    'target_bed_temp': 0.0,
+                        del client_params["enable_camera_stream"]
-                    'chamber_temp': 21.0,
+                    bambu_client = BambuClient(**client_params)
-                })()
-                
-                bambu_client.device.print_job = type('', (), {
-                    'gcode_state': 'IDLE',
-                    'gcode_file': '',
-                    'mc_percent': 0,
-                    'mc_remaining_time': 0,
-                })()
-                
-                bambu_client.device.hms = type('', (), {
-                    'errors': {'Count': 0},
-                    'update_from_payload': lambda x: None
-                })()
-                
-                self._log.debug("Created device attributes manually")
-            except Exception as e:
-                self._log.error(f"Error initializing BambuClient: {e}", exc_info=True)
-
-        # Set up our own MQTT client
-        self._mqtt_client = mqtt.Client()
-        self._mqtt_client.on_connect = self._on_mqtt_connect
-        self._mqtt_client.on_disconnect = self._on_mqtt_disconnect
-        self._mqtt_client.on_message = self._on_mqtt_message
-
-        # Configure connection based on local or cloud
-        if use_local_mqtt:
-            host = self._settings.get(["host"])
-            port = 1883
-            username = "octobambu"
-
-            self._mqtt_client.username_pw_set(username)
                 else:
-            # Cloud connection settings
-            region = self._settings.get(["region"])
-            host = f"mqtt-{region}.bambulab.com"
-            port = 8883
-            username = self._settings.get(["email"])
-            password = self._settings.get(["auth_token"])
-
-            self._mqtt_client.username_pw_set(username, password)
-            self._mqtt_client.tls_set()
-
-        # Connect MQTT
-        try:
-            self._mqtt_client.connect(host, port, 60)
-            self._mqtt_client.loop_start()
-            self._log.info(f"MQTT client started with {host}:{port}")
-            
-            # Explicitly set the connection status
-            self._custom_connected = True
-        except Exception as e:
-            self._log.error(f"Failed to connect to MQTT broker: {e}")
                     raise
         
-        # Inject our MQTT client into the BambuClient without modifying 'connected'
+        bambu_client.on_disconnect = self.on_disconnect(bambu_client.on_disconnect)
-        bambu_client._mqtt_client = self._mqtt_client
+        bambu_client.on_connect = self.on_connect(bambu_client.on_connect)
         
-        # Instead of modifying bambu_client.connected, we'll use our custom property
+        # Add more robust connection retry logic
-        self._custom_connected = True
+        connection_attempts = 0
+        max_attempts = 3
+        retry_delay = 2
         
-        # Store the Bambu client
+        while connection_attempts < max_attempts:
+            try:
+                self._log.info(f"Connection attempt {connection_attempts + 1}/{max_attempts}...")
+                
+                # Check if we need to wait based on backoff
+                current_time = time.time()
+                if current_time - self._last_connection_attempt < self._connection_retry_backoff:
+                    wait_time = self._connection_retry_backoff - (current_time - self._last_connection_attempt)
+                    self._log.debug(f"Waiting {wait_time:.1f}s before retry due to backoff")
+                    time.sleep(wait_time)
+                
+                self._last_connection_attempt = time.time()
+                bambu_client.connect(callback=self.new_update)
+                
+                # Wait a moment to verify connection
+                time.sleep(retry_delay)
+                
+                if bambu_client.connected:
+                    self._log.info(f"Bambu connection successful: {bambu_client.connected}")
+                    # Reset connection error flags on successful connection
+                    self._connection_error_logged = False
+                    self._connection_retry_backoff = 10  # Reset backoff on success
+                    break
+                
+                self._log.warning("Connection attempt failed, retrying...")
+                connection_attempts += 1
+                # Increase backoff time for future connection attempts
+                self._connection_retry_backoff = min(300, self._connection_retry_backoff * 2)  # Cap at 5 minutes
+                time.sleep(retry_delay)
+            except Exception as e:
+                if not self._connection_error_logged:
+                    self._log.error(f"Error during connection attempt {connection_attempts + 1}: {str(e)}", exc_info=True)
+                    self._connection_error_logged = True
+                else:
+                    self._log.debug(f"Repeated connection error during attempt {connection_attempts + 1}: {str(e)}")
+                    
+                connection_attempts += 1
+                # Increase backoff time for future connection attempts
+                self._connection_retry_backoff = min(300, self._connection_retry_backoff * 2)
+                
+                if connection_attempts < max_attempts:
+                    time.sleep(retry_delay)
+        
+        self.sendOk()
         self._bambu_client = bambu_client
 
         self._log.info(f"Custom connection status: {self.is_connected}")
         self.sendOk()
 
+    def _patch_bambu_client_for_connection_errors(self):
+        """Patch the BambuClient instance to handle connection errors gracefully"""
+        if not self._bambu_client:
+            return
+        
+        # If we need to modify how the library handles connection errors, particularly
+        # for the Chamber Image functionality, we can patch the relevant methods here
+        
+        # Check if the client has chamber image functionality and it's causing errors
+        if hasattr(self._bambu_client, '_chamber_image_thread') and self._bambu_client._chamber_image_thread:
+            original_run = None
+            
+            # Find the run function in the thread class
+            if hasattr(self._bambu_client._chamber_image_thread, 'run'):
+                original_run = self._bambu_client._chamber_image_thread.run
+                
+                # Create a wrapper that catches connection errors
+                def patched_run(*args, **kwargs):
+                    try:
+                        return original_run(*args, **kwargs)
+                    except ConnectionRefusedError as e:
+                        # Only log first occurrence to avoid log spam
+                        if not self._camera_error_logged:
+                            self._log.warning(f"Chamber image connection refused: {str(e)}. Further errors will be suppressed.")
+                            self._camera_error_logged = True
+                        return None
+                    except Exception as e:
+                        self._log.error(f"Chamber image error: {str(e)}", exc_info=True)
+                        return None
+                
+                # Apply the patched method
+                self._bambu_client._chamber_image_thread.run = patched_run
+                self._log.debug("Patched chamber image thread to handle connection errors")
+
     def publish_mqtt(self, topic, payload):
         """Publish a message to the MQTT broker"""
         if self._mqtt_client and self._mqtt_connected:
@@ -765,7 +1031,6 @@ class BambuVirtualPrinter:
 
         serial = self._settings.get(["serial"])
         topic = f"device/{serial}/request"
-
         return self.publish_mqtt(topic, command)
 
     def __str__(self):
@@ -775,6 +1040,10 @@ class BambuVirtualPrinter:
             options={
                 "device_type": self._settings.get(["device_type"]),
                 "host": self._settings.get(["host"]),
+                "local_mqtt": self._settings.get_boolean(["local_mqtt"]),
+                "region": self._settings.get(["region"]),
+                "email": self._settings.get(["email"]),
+                "auth_token": self._settings.get(["auth_token"]),
             },
         )
 
@@ -790,7 +1059,6 @@ class BambuVirtualPrinter:
             if self._settings.get_boolean(["simulateReset"]):
                 for item in self._settings.get(["resetLines"]):
                     self.sendIO(item + "\n")
-
             self._serial_io.reset()
 
     def write(self, data: bytes) -> int:
@@ -822,6 +1090,7 @@ class BambuVirtualPrinter:
         file_info = self._project_files_view.get_file_by_stem(
             file_path, [".gcode", ".3mf"]
         )
+
         if (
             self._selected_project_file is not None
             and file_info is not None
@@ -921,7 +1190,6 @@ class BambuVirtualPrinter:
                 self.start_continuous_temp_report(interval)
             else:
                 self.stop_continuous_temp_report()
-
         self.report_print_job_status()
         return True
 
@@ -1022,7 +1290,7 @@ class BambuVirtualPrinter:
                 acc_mag = acc_mag_scaled(speed_percentage)
                 feed = feed_rate_scaled(speed_percentage)
                 # speed_level = 1.539 * (acc_mag**2) - 0.7032 * acc_mag + 4.0834
-                return f"M204.2 K{acc_mag:.2f}\nM220 K{feed:.2f}\nM73.2 R{speed_frac:.2f}\n" # M1002 set_gcode_claim_speed_level ${speed_level:.0f}\n
+                return f"M204.2 K{acc_mag:.2f}\nM220 K{feed:.2f}\nM73.2 R{speed_frac:.2f}\n" # M1002 set_gcode_claim_speed_level ${speed_level:.0f}\n"
 
             speed_command = speed_adjust(percent)
 
@@ -1133,7 +1401,6 @@ class BambuVirtualPrinter:
     def _processTemperatureQuery(self) -> bool:
         # Debug-Log hinzufügen, um zu prüfen, ob die Methode aufgerufen wird
         self._log.debug(f"Processing temperature query - connected: {self.is_connected}")
-        
         # Aktuelle Temperaturdaten ausgeben
         self._log.debug(f"Current temperature data: Nozzle={self._telemetry.temp[0]}/{self._telemetry.targetTemp[0]}, " +
                       f"Bed={self._telemetry.bedTemp}/{self._telemetry.bedTargetTemp}")
@@ -1142,39 +1409,49 @@ class BambuVirtualPrinter:
         output = self._create_temperature_message()
         self._log.debug(f"Sending temperature message: {output.strip()}")
         self.sendIO(output)
-        
         return True
 
     def close(self):
         """Safely close all connections."""
         try:
+            # Log that we're starting to close connections
+            self._log.debug("Starting to close all connections...")
+            
             if self._mqtt_client and self._mqtt_connected:
+                self._log.debug("Stopping MQTT client loop and disconnecting...")
                 self._mqtt_client.loop_stop()
                 self._mqtt_client.disconnect()
                 self._mqtt_connected = False
                 self._custom_connected = False
+                self._log.debug("MQTT client disconnected")
                 
             # Sicherstellen, dass wir keinen AttributError bekommen, wenn wir den BambuClient trennen
             if self._bambu_client:
+                self._log.debug("Disconnecting BambuClient...")
                 try:
                     self._bambu_client.disconnect()
+                    self._log.debug("BambuClient disconnected successfully")
                 except AttributeError:
                     # BambuClient hat keinen client-Attribut oder die disconnect-Methode funktioniert nicht wie erwartet
                     self._log.warning("BambuClient disconnect failed, cleaning up manually")
                     # Manuell aufräumen
                     if hasattr(self._bambu_client, '_mqtt_client') and self._bambu_client._mqtt_client:
                         try:
+                            self._log.debug("Manually stopping BambuClient's MQTT client...")
                             self._bambu_client._mqtt_client.loop_stop()
                             self._bambu_client._mqtt_client.disconnect()
-                        except:
+                            self._log.debug("BambuClient's MQTT client manually disconnected")
-                            pass
+                        except Exception as ex:
+                            self._log.error(f"Error during manual MQTT client cleanup: {str(ex)}")
         except Exception as e:
             self._log.error(f"Error during close: {e}", exc_info=True)
         finally:
             # Immer in einen sicheren Zustand zurückkehren
+            self._log.debug("Final cleanup in close() method")
             self.change_state(self._state_idle)
             self._serial_io.close()
             self.stop()
+            self._log.debug("Connection cleanup completed")
 
     def stop(self):
         self._running = False

templates/bambu_printer_settings.jinja2

@@ -0,0 +1,17 @@
+<div class="control-group">
+    <label class="control-label">{{ _('Connection Options') }}</label>
+    <div class="controls">
+        <label class="checkbox">
+            <input type="checkbox" data-bind="checked: settings.plugins.bambu_printer.use_mqtt_bridge"> {{ _('Use MQTT Bridge') }}
+            <span class="help-block">
+                {{ _('Connect via a MQTT broker that bridges communications from the printer. Useful for connecting to a printer on a different network.') }}
+            </span>
+        </label>
+        <label class="checkbox">
+            <input type="checkbox" data-bind="checked: settings.plugins.bambu_printer.disable_camera"> {{ _('Disable Camera Functionality') }}
+            <span class="help-block">
+                {{ _('Disable camera streaming and image capture to avoid connection errors. Enable this if you see frequent connection refused errors in the logs.') }}
+            </span>
+        </label>
+    </div>
+</div>