Zendure P1 and Solarflow 2400 AC not reconnecting to local HA MQTT

[StanAnsems]

My setup:

• Home assistant: OS 16.3

• HA Core: 2025.11.3

• HA Supervisor: 2025.11.4

• HA front-end: 20251105.1

• Mosquitto broker: 6.5.2

• Zendure Android app: 5.10.1

• Zendure Smart Meter P1 (192.168.0.26)

• Zendure Solarflow 2400 AC (192.168.0.27)

Within the Android app for both devices I setup MQTT to my local Mosquitto broker.
Within HA auto MQTT discovery is activated.

Both devices are added as a device. And everything works as expected.
When I request https://192.168.0.27/rpc?method=HA.Mqtt.GetConfig the MQTT configuration added via the Android App is returned.
When I request https://192.168.0.27/rpc?method=HA.Mqtt.GetStatus it returns {"connected":true}

Issues:

1. When I restart HA or Mosquitto both devices are not reconnecting automatically

• Both devices do not report new events to HA
• When I request the "GetConfig" it returns the config correctly
• When I request the "GetStatus" it still returns {"connected":true}
• When I login into the Android app and click "save" the connection is re-instated

2. When I do the same request for the P1 smart meter it returns "Nothing matches the given URI"

Kind regrads,
Stan

[StanAnsems]

I was in contact with ZenDure support and they replied the following:

"We would like to explain that currently our device operates under the logic that if the MQTT connection drops, it will automatically attempt to reconnect 30 times, once per second. If it still fails to reconnect after 30 attempts, it will not try again and you will need to restart the device or re-enable the MQTT function to reconnect."

I asked them if it would be possible to change this behavior to gradual back-off retry and they will take it into account for possible improvements for the future. So 🤞

[an0Nym0us63]

This seems completely wrong or only one of the issue because on my side mosquitto is not on the same machine as HA

Because when this happens, you can restart your mosquitto (and only him if it is hosted away from HA) and you will see that everything is communicating again

so this isnt an issue with the device stopping to communicate with mqtt as they said but an issue with the way that they make the auto discovery and therefore after a restart of ha subscription is not made.

So there is at least 2 issues related to the way they communicate with mqtt

one is what you report : if mosquitto is away for more than 30 minutes communciation is lost

the second one : even if mosquitto is up, i f you restart ha communication is lots until (you restart mosquitto or you submit mqtt option from the 3ct again)

[StarWing01]

New Zendure user here, same issue. MQTT connection between HA <=> zendure is lost when HA is restarted/reloaded. Pressing the "save" button in the app, reconnects the P1/Solarflow to HA.