I’m having an issue adding my 21st Zigbee device. Almost all of them are light bulbs and work great. Everytime I try to add another light bulb it works for a few seconds but stops and loses the Zigbee network. I’ve tried repair, but it doesn’t work. I’ve also tried other Zig vendors and they failed. From some of the prior posts, others have had the same issue, albeit I never saw any solution, except start using Z-wave, which I don’t even think makes a light bulb. Other posts reference interference with WIFI using 2.4ghz band. I have a brand new Eero router which supports IPv6, 5ghz, etc. Router assigns DHCP & NAT automatically. It uses channel 25 for Thread. Multi-link is turned on. Can someone suggest how to add more than 20 Zigbee light bulbs. Oh, all my bulbs are Third Reality. thanks
Hi Bill,
You’d be able to pair 30-ish router devices directly, then expand it by adding either router or end devices.
The maximum usable number of zigbee devices is about 200, but in a home in 2026 I’d cut that number in half.
https://support.homey.app/hc/en-us/articles/10374465562652-Creating-a-stable-Zigbee-network-with-Homey-Pro
You’d really tune the 2.4GHz wifi and zigbee channels;
Mind close neighbours: when you’re surrounded by apartments, any of their 2.4GHz wifi signals can potentially interfere with your zigbee signal, and nothing you can do when their 2.4GHz wifi is on auto-channel.
Zigbee usually needs to be configured well, it’s pure luck when it works just like that.
This and other very useful info can be found in here:
If you reach the limit of Homey’s ZigBee devices, you can also put those devices on a Hue bridge (any ZigBee switch, dimmer or bulb should work) and then yoi can integrate the Hue bridge in Homey.
