Some lights not being changed by scene

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1

I have a big scene I trigger that turns on a bunch of lights in the morning, and another I trigger at nighttime to turn them off. I added a bunch of Hue lights recently, and noticed some of them occasionally fail to turn on or off. It’s not consistent which ones don’t respond. They are part of a light group in HA. HA correctly displays their state if they fail to turn on, so I can manually turn them on one at a time, but it’s not idea.

I’m wondering if there are just too many commands going out at the same time, resulting in some failures. Would smaller scenes triggered by an automation help?

2

Yep, quite a few threads in this forum about it. Basically, HA light groups get less dependable the more lights you add.

The way I see is is you have 3 options:

  • If you’re using Hue bulbs via a zigbee integration (ZHA or Z2Mqtt), create a zigbee group for these instead of a HA group. Zigbee groups are somewhat more reliable.
  • Use an automation like you suggested & have it repeat the command (with a slight delay) if any of the lights are not in their desired state. You can use delay & repeat_until in your automation to accomplish this.
  • Both of the above.
3

Thanks, this is helpful. I’ll try an automation.

4

If you have a Hue hub, any room or zone you set up via the hub becomes available in HA as a single light entity, which is effectively a much smarter “group” than what you get with an HA light group.

I’m pretty sure the hub uses a Zigbee group as referenced in ShadowFist’s response above. It’s very reliable and does not require HA to send a separate command to each individual light in the room or zone.