MQTT Connected | Unexpected disconnection, trying to reconnect

[hs82h]

Frigate is running fine without any errors, but WhosAtMyFeeder gives me te following error messages in the logs:

MQTT Connected
Unexpected disconnection, trying to reconnect

My config is as follows:

frigate:
  frigate_url: http://u2.lan:5000
  mqtt_server: u1.lan
  mqtt_auth: false
  mqtt_username: mosquitto
  mqtt_password: *******************
  main_topic: frigate
  camera:
    - d2ep
    - fi9900p
  object: bird
classification:
  model: model.tflite
  threshold: 0.7
webui:
  port: 7766
  host: 0.0.0.0

How can I troubleshoot this?

[dopeytree]

does this need to say true instead of false?
mqtt_auth: false
Or remove the username & password entries?

[hs82h]

Yep, that was it. mqtt_auth: true

Thnx!