Best way to trace if it's not working

[projectraam]

I now have the board and everything seems to be connected as described. It's connecting to the wifi and I can ping the IP, but it does not connect to the broker..

I have also tried to flash the nocemcu again.

What is the best way to trace where the problem is?

Note. The logs was cleared on restart so cant provide the full log.

[projectraam]

I am using homeassistant and the plugin "MQTT Server & Web client", the config for that looks like this:

{
  "log_level": "info",
  "certfile": "fullchain.pem",
  "keyfile": "privkey.pem",
  "web": {
    "enabled": true,
    "ssl": false
  },
  "broker": {
    "enabled": true,
    "enable_ws": false,
    "enable_mqtt": true,
    "enable_ws_ssl": false,
    "enable_mqtt_ssl": false,
    "allow_anonymous": false
  },
  "mqttusers": [
    {
      "username": "username",
      "password": "password",
      "readonly": false,
      "topics": [
        "#"
      ]
    }
  ]
}

[dkjonas]

I don't know the "MQTT Server & Web client" component. I use mosquitto as my broker, so I do not know if the config above is correct. Can you connect to mqtt using another client - just to make sure the server is working?

[projectraam]

I am able to connect to the MQTT server via another client and it shows up in the logs

1553197105: New connection from 192.168.110.32 on port 1883. 1553197105: New client connected from 192.168.110.32

I have some Sonoff switches connected to my MQTT server and they connect to hassio.local:1883 In my PrivateConfig.h I have the following: const String MQTT_SERVER = "hassio.local:1883"; // mqtt server

[dkjonas]

Try without the port number in the address: const String MQTT_SERVER = "hassio.local"; // mqtt server

Port is defined in main.cpp: const uint16_t MQTT_PORT = 1883; // mqtt port

[projectraam]

That did the job, thanks a lot for quick help 👍