MQTT server & web client UI

I am in the process of setting up MQTT using the MQTT Server & Web client without ssl. The setup appears to go fairly well as reported in the log but I cannot open the web UI. The browser shows that it is trying to use ssl ( I don’t know where port 5713 got configured or why it is trying to use ssl.

Hopefully, my error will be clear to someone more familiar with the territory. I would appreciate some help, please.

My configuration yaml:
broker: a0d7b954-mqtt
port: 1884
username: !secret mqtt_username
password: !secret mqtt_password
client_id: hassio

MQTT Server & Web client configuration

  "log_level": "info",
  "certfile": "",
  "keyfile": "",
  "web": {
    "enabled": true,
    "ssl": false
  "broker": {
    "enabled": true,
    "enable_ws": true,
    "enable_mqtt": true,
    "enable_ws_ssl": false,
    "enable_mqtt_ssl": false,
    "allow_anonymous": false
  "mqttusers": [
      "username": "!secret mqtt_username",
      "password": "!secret mqtt_password",
      "readonly": false,
      "topics": [

MQTT Server & Web client log

[s6-init] making user provided files available at /var/run/s6/etc…exited 0.
[s6-init] ensuring user provided files have correct perms…exited 0.
[fix-attrs.d] applying ownership & permissions fixes…
[fix-attrs.d] done.
[cont-init.d] executing container initialization scripts…
[cont-init.d] executing… Add-on: MQTT Server & Web client v0.3.1
Mosquitto MQTT Server bundled with Hivemq’s web client
From: Community Add-ons
By: Franck Nijhof [email protected]

aarch64 / HassOS 1.13 / HA 0.83.2 / SU 142 / stable

[cont-init.d] exited 0.
[cont-init.d] executing…
Log level is set to INFO
[cont-init.d] exited 0.
[cont-init.d] executing…
INFO: You are running the latest version of this add-on
[cont-init.d] exited 0.
[cont-init.d] executing…
[cont-init.d] exited 0.
[cont-init.d] executing…
patching file /app/index.html
[cont-init.d] exited 0.
[cont-init.d] executing…
INFO: Adding configuration for MQTT Server…
INFO: Setting configuration for websockets…
INFO: Setting configuration for mqtt…
[cont-init.d] exited 0.
[cont-init.d] executing…
[cont-init.d] exited 0.
[cont-init.d] executing…
[cont-init.d] exited 0.
[cont-init.d] done.
[services.d] starting services
[services.d] done.
INFO: Starting mosquitto MQTT Server…
1548114133: mosquitto version 1.4.15 (build date 2018-03-04 15:36:00+0000) starting
1548114133: Config loaded from /opt/mosquitto.conf.
1548114133: Opening websockets listen socket on port 1884.
1548114133: Opening ipv4 listen socket on port 1883.
1548114133: Opening ipv6 listen socket on port 1883.
INFO: Starting NGINX for the MQTT client…
2019/01/22 10:42:16 [notice] 920#920: using the “epoll” event method
2019/01/22 10:42:16 [notice] 920#920: nginx/1.14.2
2019/01/22 10:42:16 [notice] 920#920: OS: Linux 4.14.81-v8
2019/01/22 10:42:16 [notice] 920#920: getrlimit(RLIMIT_NOFILE): 1048576:1048576
2019/01/22 10:42:16 [notice] 920#920: start worker processes
2019/01/22 10:42:16 [notice] 920#920: start worker process 990

Would any would be reader of this topic please disregard it. My struggle with mqtt continues but a little further along the road. Thanks.