Zigbee going offline after upgrading to the latest software release

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1

Platform Version: 2.5.0.159

Hardware VersionC-7

Dears,

I use to get hub severe load when making remote admin.

After software upgrade, the issue is fixed but zigbee goes offline every 24 hours and it’s fixed after reboot. Not sure if it’s related to or not.

2

I would not expect it to be related. Do you see any errors in your log at that time? Do you need to reboot the hub, or have you tried rebooting only the Zigbee radio?

3

Tried enable zigbee radio and it didn’t work. Only fixed with Hub reboot. In the logs, no much errors other than all devices goes offline.

4

Any newly added devices recently that might impact your mesh? You can also revert back to your previous hub platform and see if the problem remains.

Reverting back requires using the Hub diagnostic tool by adding :8081 after the hub’s IP address.

5

Issue only appeared after software upgrade done 2 weeks back. No device added recently.

6

Another important observation that zigbee goes offline after around 12 hours after rebooting the hub

dev:152026-06-19 10:00:00.612 am info Spotlight Sofa 1 health status is offline [physical]

app:892026-06-18 9:10:23.078 pm info Action: Notify System restarted(18-Jun-2026-08:10 PM System restarted)'

dev:152026-06-18 7:00:00.656 pm info Spotlight Sofa 1 health status is offline [physical]

app:892026-06-18 6:55:00.092 am info Action: Notify 18-Jun-2026-05:54 AM System restarted
dev:152026-06-18 4:00:00.713 am info Spotlight Sofa 1 health status is offline [physical]

7

A 12-hour period without any Zigbee messages is the threshold at which some custom device drivers will report a device as offline. It seems that your Zigbee hub radio has not been operational since the reboot...

A shot in the dark - do you have any Sonoff mains-powered Zigbee devices paired to your C-7 hub?

8

There are a zigbee messages exchanged in the meantime, but I filtered it out the time when the zigbee went down. And yes I have sonoff outlet which were there since months. The issue only appeared when doing software uprgade recently

9

To narrow down what is causing the problem, i can suggest you to do one of the following:

  • revert the HE platform to the previous version
    Or
  • Change the Sonoff driver to the Tuya Zigbee Switch driver (search the forum for a link for manual installation)
    Or
  • Remove the Sonoff outlet from your C-7 hub, if you can afford local on/off control during the testing.

If you look at Settings-> Zigbee and sort the list of the Zigbee devices by Number of Messages - is the Sonoff outlet on the top of the list?

10

i have stopped using the remote admin for few days and discovered that the zigbee didn’t go offline. yet another observation, is that when checking hub events in the logs i see the zigbee going offline and online frequently without causing the zigbee goes permanentely offline like before.

{4F7E4CB8-95DF-4F3A-8915-968A384DD7D0}
{4F7E4CB8-95DF-4F3A-8915-968A384DD7D0}1537×727 57.7 KB

11

Bought HUE bridge to remove all the IKEA bulbs and reduce the amount of devices handled by my C7 . Still the problem is there ! Had to remove also chatty devices and am now only left with 20 devices and still have the same issue. Any support will be appreciated.

12

Perhaps give a screenshot of the remaining Zigbee devices you have connected.