It happened exactly when the bulb flashed (7:20pm), but I did not do anything to send a configure command. This bulb has been at the current Cree firmware since August. This makes be believe the latest hub firmware did do something to make these start flashing.
I also found several other “configure” entries in the device’s event log - all while we were gone over the holidays.
I have been having issues with my Cree bulb (only one) since some time in November. I just came across this thread.
I don’t know if the bulb is flickering at all, as it’s an outdoor bulb. But it does come and go as “unavailable” (mostly unavailable now, only seems to show available and accept commands shortly after I power it off then back on).
Is being “unavailable” a symptom of the firmware issue? Is there a fix?
I have three Cree bulbs, my biggest recent issue was with them wreaking havoc on my Zigbee mesh. I would unplug them, and everything would go back to normal. I did a Zigbee mesh rebuild with the bulbs unplugged, and everything went back to being rock solid. I also has some issues with them randomly turning on after the firmware update as well. I emailed Cree for advise, and without me even asking they have offered to send out replacement bulbs, and the are even including a return label for the old bulbs. I’ve accepted, but TBH I’ve kind of lost faith in the cree bulbs. Wondering if it would be better to sell the three new bulbs and replace them with hue bulbs. I already have a Hue hub and some bulbs set up with Smartthings. Irony is these bulbs were the most stable thing on the network before.
Agreed. They were the most stable bulbs till this random flickering issue.
FYI after few email exchange, I am also getting replacements. Now i just need to find a spot where flickering lights is not an issue.
As far as reeking havoc on your mesh…these bulbs are ZLL (Zigbee Light Link) and other HA devices are ZHA (Zigbee Home Automation). In theory, ZLL devices should be able to be repeaters for ZHA devices. In practice, most of them SUCK at doing this and will just drop the message if they have trouble repeating it. For this reason, I have all my cree bulbs on my Hue hub (yes, they are compatible). The Hue system is ZLL and therefore they won’t run into the same problem there. Plus the two networks are independent so they don’t clash with each other.
As far as the bulb being unavailable, does your outdoor socket always have power (you’re not shutting it off with a “dumb” switch are you)? Do you have a strong enough signal in the area to reach the bulb? Where’s the closest repeater? As far as I have scene, the bulbs re-setting because of the firmware have not caused any of mine to become unavailable. It might be happening if your bulb is on the edge of your mesh and not able to immediately re-establish communication with the hub.
The issue is with the FW on the Cree bulbs themselves. For example, some have reported the issue continues with the bulbs on the Hubitat platform as well.
New bulbs are okay until they they get the updated Cree FW. You can stop that Cree FW update by turning off over the air FW updates for Zigbee bulbs in the ST IDE. But if they update they are basically toast.