Zigbee radio shuts off for a few minutes; no apparent reason

OK, I am going to post this inquiry as a new topic since I didn't see the specific situation in other threads.

Issue:

Zigbee radio just shuts off for a few minutes, seemingly randomly, several times a day. I can see it in the "location events" log, here's one such instance:

| zigbeeOn | Zigbee radio is on | zigbeeOn | SYSTEM | 2021-12-09 12:59:38.570 EST |

| zigbeeOff | Zigbee radio is off | zigbeeOff | SYSTEM | 2021-12-09 12:54:03.537 EST |

and another:

| zigbeeOn | Zigbee radio is on | zigbeeOn | SYSTEM| 2021-12-13 19:23:08.334 EST |

| zigbeeOff | Zigbee radio is off | zigbeeOff | SYSTEM | 2021-12-13 19:17:03.203 EST |

here are some more:

| zigbeeOn | Zigbee radio is on | zigbeeOn | SYSTEM | 2021-12-10 13:46:18.089 EST |

| zigbeeOff | Zigbee radio is off | zigbeeOff | SYSTEM | 2021-12-10 13:40:32.959 EST |

| zigbeeOn | Zigbee radio is on | zigbeeOn | SYSTEM | 2021-12-10 07:57:32.274 EST |

| zigbeeOff | Zigbee radio is off | zigbeeOff | SYSTEM | 2021-12-10 07:51:57.139 EST |

| zigbeeOn | Zigbee radio is on | zigbeeOn | SYSTEM | 2021-12-10 05:10:37.020 EST |

| zigbeeOff | Zigbee radio is off | zigbeeOff | SYSTEM | 2021-12-10 05:04:22.001 EST |

4 to 6 minutes or so, each time, random times of day. No correlation with anything else I can think of.

It's annoying when someone is walking around or whatever and the automation doesn't do what it's supposed to because the Zigbee is AWOL.

Scenario:
HE C7 hub, always running the very latest code. Running mostly some rather simple automation timer type use cases.

There is a Lutron hub and a Hue hub integration.

The Hue Zigbee devices are on channel 11, as I recall, and all the HE Zigbee devices are on channel 20.

This problem has been happening for a while and has recently become more noticeable.

Typically, the Zigbee turning off is a sign that your hub is “overworked”. Do you have anything in your logs or system stats that might show the cause?

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If you didn't do so already, be sure to send an email to support@hubitat.com. Zigbee going offline on a C7 is indicative of a hardware malfunction.

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Thanks for the response. I thought the same thing, and while I have had situations where the HE gave me an 'elevated' CPU use message, in this case I don't see anything obvious like that.

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Thanks for the response. I just sent an email to the 'support' alias.