How to specify esp-mqtt communication over a wired network (IDFGH-15837)

[mifarelight]

Checklist

• Checked the issue tracker for similar issues to ensure this is not a duplicate.
• Provided a clear description of your suggestion.
• Included any relevant context or examples.

Issue or Suggestion Description

My device has both wired (W5500) and wireless (ESP32-S3 native) network connection implement.
Currently implemented:

1. Both wired and wireless networks work normally;
2. MQTT protocol accesses external MQTT servers normally through wireless network. (esp-mqtt library)

Problem encountered:
When I turn off the wireless network connection, MQTT protocol communication cannot be performed.

Question:
What should I do to specify esp-mqtt to communicate through wired (W5500) network?

[euripedesrocha]

Hi @mifarelight, how are you setting your interfaces? I suggest you refer to this example

Could you share the mqtt client configuration?

Could you share the logs?

[mifarelight]

I'm sorry for not giving further feedback for so long.

I just reinstalled VSCode+PlatformIO recently, and when recompiling a project with esp-mqtt, I got an error "error: 'esp_mqtt_client_config_t' has no non-static data member named 'broker'".

I will check the problem reflected in this title after I adjust the development environment.