fix: use port 8883 as default for MQTT when TLS is enabled

When no explicit port is specified in the MQTT broker address, the
proxy always defaults to port 1883. This causes a "Connection reset
by peer" error when TLS is enabled, since TLS brokers typically
listen on port 8883.

Default to 8883 when tls_enabled is true, 1883 otherwise.

Author: dereckhall

custom_components/meshtastic/aiomeshtastic/interface.py

@@ -418,7 +418,8 @@ async def _init_mqtt_client(self) -> None:
 
         # Parse broker address
         hostname = broker.split(":", 1)[0]
-        port = int(broker.split(":", 1)[1]) if ":" in broker else 1883
+        default_port = 8883 if use_tls else 1883
+        port = int(broker.split(":", 1)[1]) if ":" in broker else default_port
 
         # Get node ID for client identifier
         node_id = self._connected_node_info.my_node_num