Hi All,

I just wanted to share my experience in case anyone else has similar. I have a WEM3080T, and have for the past couple of years and been very happy with it. The way I have it configured is a) to send data to a local docker container using the HTTP push method, also push to the IamMeter could, and use the HACS Home Assistant integration to pull data into Home Assistant.

Like many I upgraded the firmware in late September, and then each subsequent version there after.

I started to observe that Home Assistant would stop updating every 15 days or so. The graphs all became flat lines for every sensor. The data was still going to the Docker container, and the cloud. I could still access the WebUI of the WEM3080T, and the data there was accurate and updating, but Home Assistant wouldn’t.

It froze again today so I’ve spent more time investigating. Looking at my WiFi/network logs (I have all the UniFi logs going to Splunk) I observed the following.

Before upgrading to i.91.061 and all the later versions, the WEM3080T would automatically reconnect to the WiFi every 24 hours. I can see it in the WiFi connection logs like clockwork since the upgrade this behaviour stopped. I think the WEM3080T use to auto reboot every 24 hours as part of a health check process.

I’ve just downgraded to i.76.058.8 as a trouble shooting step as it was rock solid before the recent firmwares.

Sharing here in case others have had a similar experience, as I did look but haven’t found any similar posts.

James

Hi James,

Please let me know ,which do you used in HACS, hacs-http or hacs-modbus/tcp?



Normally ,if the web UI is still accessible ,that means the local API is available, so the HACS-http would be available either.

If you use HACS-http, when you meet this issue, please call the local API /api/monitorjson andcheck whether it returns correctly.
If you use HACS-modbus/tcp, when this issue happen, please try to use a modbus client to poll the data ,and check whether it is OK.

Or could you mind to review your log in home assistant? If there any error information ?

Jason

Hi Jason,

Happy to collect and share the logs. It will take me a little while to go back through the Home Assistant logs as they aren't the easiest to get at in the past.

I can confirm I'm using the "Iammeter_http" integration from HACS, version 1.0.18. What I do recall is when Home Assistant stopped getting updates, the troubleshooting I tried at the time was:

1. Reload the ammeter_http integration - didn't help

2. Restart Home Assistant - didn't help

3. Rebooted the entire VM - didn't help.

4. Data was still getting to my local docker container (the IamMeter provided one), and the IamMeter cloud

5. I could access the Web UI and it appeared to be updating (but I'm now doubting myself).

6. If I power cycled the WEM3080T it instantly started working again.

I then over the next few months tried gradually downgrading the firmware, and kept having it stop working every 15 days or so. Each time I did all of those checks, and would as a last step try downgrading to a previous firmware version. I also tried upgrading to a new firmware every time a new one came out.

It was only on the 17/01/2026 that it occurred to me to check at the WiFi connection logs and the time stamps of when the updating had stopped.

I'm only a few days into running the older firmware, and I can see it reconnecting to WiFi every 24 hours (like it used to). I'll keep monitoring and see if I now get past 15 days (I'm hoping I do).

Hi,

5. I could access the Web UI and it appeared to be updating (but I'm now doubting myself).

Please let me know what is the web UI ? is it the local web page of the device? (http://{local ip of the device} )



If so ,please visit

http://{local IP of the device}/api/monitorjson

and let me know whether this api is accessible and whether the data is updated there.(you can call this api several times and check whether the return data can be updated)



Please also check ,when the home assistant stop updating ,whether the data in docker still update?



we need to know when the HA stop updating ,whether that means the api can not return the data or it still return the data but the data do not changed.

If you’re still seeing this issue, please try upgrading HACS iammeter_http to v1.0.20.
This version fixes the problem where Home Assistant may stop updating after running for some time.

What’s improved in v1.0.20:

• Added a 10s connection timeout to avoid infinite waiting

• Smarter error logging (ERROR only on the 1st and every 10th failure)

• Auto-reconnect detection with success notification

• Improved handling for offline or unreachable devices