Unusual state changes between on and offline

[Messiam]

Hello, I'm currently checking my initial setup which is quite default.

And I see some changes of "panasonic_heat_pump/LWT" which might be unusual. It toggles between online and offline. Is this normal?

22.11.2022 21:56:05 Offline 22.11.2022 21:55:57(-8.22 seconds) Online 22.11.2022 21:55:41(-15.77 seconds) Offline 22.11.2022 21:55:27(-14 seconds) Online 22.11.2022 21:55:27(-0.22 seconds) Online 22.11.2022 21:55:11(-15.78 seconds) Offline 22.11.2022 21:55:01(-9.76 seconds) Online 22.11.2022 21:54:57(-4.47 seconds) Online 22.11.2022 21:54:35(-21.78 seconds) Offline 22.11.2022 21:54:27(-8.22 seconds) Online 22.11.2022 21:54:17(-9.79 seconds) Offline 22.11.2022 21:54:06(-10.74 seconds) Online

[IgorYbema]

My first guess would be your wifi is not strong enough. Should be 70% for minimal good setup.

[Messiam]

Might be, Wifi signal is ~56 - 58%. The wifi hotspots are not very close.

What is the LWT topic actually? The documentation just mentions "Online/Offline (automatically returns to Offline if connection with the HeishaMon lost)".

Is it the connection from Heishamon to Wifi or to the heatpump?

[IgorYbema]

It is a signal in mqtt to show the state of connection from heishamon to mqtt

[Messiam]

Ok. Thank you for explanation.

I don't understand how Heishamon can set it to "offline" when there is no connection ;-) But this is probably the last state before update to mqtt is sent. Right?

[IgorYbema]

No the mqtt server sets this state as it has lost connection

[Messiam]

Ok, I need to learn about some mqtt basics I think. Thank you!

[IgorYbema]

https://www.hivemq.com/blog/mqtt-essentials-part-9-last-will-and-testament/