Can not log Appdaemon to MQTT

Third party integrations AppDaemon
1

I installed appdaemon couple of days ago and trying since get it to work.
For some reason whatever I try I can not log it to HA MQTT.
My appdaemon yaml mqtt part is as following

    MQTT:  
      type: mqtt # you can change this, but use the same namespace in code  
      namespace: mqtt # needed
      verbose: True
      client_host: 172.16.0.158
      client_username: mqttuser
      client_password: passwrd

appdaemon keeps telling me

2024-06-07 21:37:55.217569 CRITICAL MQTT: Could not complete MQTT Plugin initialization, for Connection was refused due to Not Authorised
2024-06-07 21:37:50.204771 CRITICAL MQTT: Could not complete MQTT Plugin initialization, trying again in 5 seconds
2024-06-07 21:37:50.186544 CRITICAL MQTT: Could not Complete Connection to Broker, please Ensure Broker at URL 172.16.0.158:1883 is correct and broker is not down and restart Appdaemon

I know that all credentials are correct !!
No idea what to do next…