Mosquitto broker: New client connected from 172.30.32.1 as auto-3A4CBBDE-C9F0-6A6E-6929-C5524D4E4CCE (p2, c1, k60, u'homeassistant')

I am running Home Assistant (HASSOS) running in a Ubuntu VMWare VM.

I just installed the Mosquitto Broker addon with the below configuration:

logins:
  - username: mkanet
    password: 'mypassw#rd'
anonymous: false
customize:
  active: false
  folder: mosquitto
certfile: fullchain.pem
keyfile: privkey.pem
require_certificate: false

I currently have an MQTT client connecting to this broker; pointing it to: 192.168.1.2 with the same username and password specified in the above configuration.

If I reboot Home Assistant, my client (IOTLink), keeps trying to connect/disconnect over and over again, unless I restart the IOTLink service 3 times. The log for this client looks like below over and over again (unless I restart the IOTLink service 3 times). The 4th time, IOTLink finally connects.

[MKANET\HORIZON][2020-05-23 21:41:54 -07:00][SYSTEM][IOTLinkService.Service.MQTT.MQTTClient]: ALL YOUR MQTT TOPICS WILL START WITH iotlink/MKANET/horizon/
[MKANET\HORIZON][2020-05-23 21:41:54 -07:00][WARNING][IOTLinkService.Service.MQTT.MQTTClientManager]: MQTTClientManager::VerifyConnection() - MQTT Connection Broken. Reconnecting.
[MKANET\HORIZON][2020-05-23 21:41:54 -07:00][INFO][IOTLinkService.Service.MQTT.MQTTClient]: MQTTClient::Disconnect() - Trying to disconnect from broker: tcp://192.168.1.7:1883.
[MKANET\HORIZON][2020-05-23 21:42:02 -07:00][INFO][IOTLinkService.Service.MQTT.MQTTClient]: MQTTClient::OnConnectedHandler() - MQTT Connected

The respective MQTT Broker log looks like below after I reboot HA:

[21:41:59] INFO: Setup mosquitto configuration
[21:41:59] WARNING: SSL not enabled - No valid certs found!
[21:41:59] INFO: Found local users inside config
[21:42:00] INFO: Initialize Hass.io Add-on services
[21:42:00] INFO: Initialize Home Assistant discovery
[21:42:00] INFO: Start Mosquitto daemon
1590295320: mosquitto version 1.6.3 starting
1590295320: Config loaded from /etc/mosquitto.conf.
1590295320: Loading plugin: /usr/share/mosquitto/auth-plug.so
1590295320: |-- *** auth-plug: startup
1590295320:  ├── Username/password checking enabled.
1590295320:  ├── TLS-PSK checking enabled.
1590295320:  └── Extended authentication not enabled.
1590295320: Opening ipv4 listen socket on port 1883.
1590295320: Opening ipv6 listen socket on port 1883.
1590295320: Opening websockets listen socket on port 1884.
1590295321: Warning: Mosquitto should not be run as root/administrator.
1590295321: New connection from 192.168.1.2 on port 1883.
[INFO] found mkanet on local database
1590295322: New client connected from 192.168.1.2 as horizon (p2, c1, k60, u'mkanet').
1590295322: Client horizon disconnected.
1590295322: New connection from 192.168.1.2 on port 1883.
1590295322: New client connected from 192.168.1.2 as horizon (p2, c1, k60, u'mkanet').
1590295327: New connection from 192.168.1.2 on port 1883.
1590295328: New client connected from 192.168.1.2 as 84525947701 (p2, c1, k60, u'mkanet').
1590295381: New connection from 172.30.32.1 on port 1883.
[INFO] found homeassistant on local database
1590295383: New client connected from 172.30.32.1 as auto-3A4CBBDE-C9F0-6A6E-6929-C5524D4E4CCE (p2, c1, k60, u'homeassistant').

I don’t have any experience with MQTT; however, I know enough to realize it shouldn’t try to authenticate using the username: ‘homeassistant’ from the client IP: 172.30.32.1 .

All I know is 172.30.32.1 is the internal docker IP address.

I have no idea why I have to restart IOTLink exactly 3 times for it to connect. The odd thing is this behavior is extremely consistent.

I don’t have anything specified in my Configuration.yaml that’s related to MQTT; just the MQTT Broker configuration I posted above.

Could someone please help get my client to connect reliably the first time?

PS: If I don’t explicitly specify username/password in my MQTT Broker configuration, I get the error message in the supervisor log that login “mkanet” is wrong; even though the credential is correct (matching my Home Assistant username/password that I use to connect).

Thanks so much for your assistance!

That is the connection from HA to your broker.

These are the connections from your PC (IOTLINK) to to the broker.

Don’t know why, but I tried out IOTLINK on my son’s PC, it does not seem so reliable. I have over 60 other devices that have no problem connecting to MQTT.