[BUG] Web page not visible anymore - Home assistant entities also not updating

[nielscapiot]

Faikin hardware
Faikin bought on Amazon 05/2024

Daikin hardware
Daikin FTXM42A, Faikin connected to the S21 port.

Describe the bug
I started from a clean home assistant install a few days ago, installed mosquitto, MQTT, configured the Faikin to connect over mqtt to the right ip and port. Everything worked, entities showed up in home assistant and I was able to control the AC.
After a day I looked at it again and noticed that home assistant apparently had issues receiving status from Faikin. It says "Daikin airco is not available anymore", after a while it seemed to connect again and then there would be a message "Daikin airco turned off" and "Daikin Airco demand control set to 75". Also visible in screenshot but it is in Dutch.

Today I checked again and I noticed that the state is not changed at all anymore. I checked with the Onecta app and home assistant is not in sync anymore with the actual airco.

I then went to check the web page of Faikin, but that is also not working anymore it seems:

So I guess something is going wrong with the Faikin unit? Probably a power cycle will solve it but it might happen again in the future. I also had similar problems before but I thought it was just related to my outdated home assistant hardware.

I can also include diagnostics from home assistant, it might be useful. It seems that the Faikin is still publishing it's state every hour but the values do not update anymore.

mqtt-01KJG190RK6F8SDDJP5E94J4MR-DaikinAirco-1369f7e7225edfb62e012ccce686ad38.json

To Reproduce
I did not do anything special. Connected Faikin to Wi-Fi. Configured MQTT for home assistant and just let it run for 2 days.

[revk]

Some people have seen the web interface stop, it seems very rare and not entirely clear why or when, but as far as I know in such cases MQTT carries on fine, so this may be different.

What is that licence text from - it is not Faikout. Are you sure there is not some sort of IP conflict on your LAN/WiFi?

[AhegaHOE]

The license text is displayed when you access the WiFi module’s web interface at http://<ip-of-your-ac>/. I recommend assigning static IP addresses to your Faikout boards in your DHCP server to prevent this issue in the future.

[nielscapiot]

The license text is displayed when you access the WiFi module’s web interface at http://<ip-of-your-ac>/. I recommend assigning static IP addresses to your Faikout boards in your DHCP server to prevent this issue in the future.

Do you mean that this is the web page for the WiFi unit for the actual AC unit? So not the Faikout board?

I will have a look into that later this week. It does sound like a possible cause indeed.

[revk]

That licence page is NOT from the Faikout board.

[dahadd]

This is a text from the daikin Webinterface.

[AhegaHOE]

The license text is displayed when you access the WiFi module’s web interface at http://<ip-of-your-ac>/. I recommend assigning static IP addresses to your Faikout boards in your DHCP server to prevent this issue in the future.

Do you mean that this is the web page for the WiFi unit for the actual AC unit? So not the Faikout board?

I will have a look into that later this week. It does sound like a possible cause indeed.

Yes that's what I meant. It is from the WiFi Unit that ships with the AC Unit.