# Zigbee unstable since update to second last update

**URL:** <https://community.homey.app/t/zigbee-unstable-since-update-to-second-last-update/84848>\
**Category:** Questions & Help\
**Tags:** zigbee, homey-pro\
**Created:** [July 18, 2023, 11:04pm UTC](https://community.homey.app/t/zigbee-unstable-since-update-to-second-last-update/84848 "2023-07-18T23:04:30Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Peter\_Kawa](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/peter_kawa/32/173848_2.png) [@Peter\_Kawa](https://community.homey.app/u/Peter_Kawa)\
**Post date:** [July 20, 2023, 12:20am UTC](https://community.homey.app/t/zigbee-unstable-since-update-to-second-last-update/84848/2 "2023-07-20T00:20:49Z")

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> [@Ronald\_Otto](#):
>
> the second last update

version number please

> [@Ronald\_Otto](#):
>
> homey says

Homey model please

> [@\[Tip\] Problems with Homey?](https://community.homey.app/t/problems-with-homey/35744):
>
> When u have problems with Homey and you are reaching out to the community members here on the forums it’s important to give as much info as u can. First of All: New Homey Family members 09-2021 and 01-2023 Since September 2021 there are new Family members: Homey (Service / Premium), and the first “old” Homey is rebranded as Homey Pro (early 201x) Since Januari 2023: Homey Pro Early 2023 is getting delivered to the early adopters. And while using Homey with or without a Homey Bridge on m…

While everyone should have zigbee issues in case the firmware is the cause, and it doesn’t seem to be the case, try to think of other things which changed around the time you installed “the second last update”;  
Also,

1. did you replace the PSU and cable for a well known brand 5V / 2A (or more) PSU already? Does it change anything?

> [@Ronald\_Otto](#):
>
> It really seems to be a stability issue. Zigbe lights take a long time to respond. And sometimes, when i turn of a light, it goes off, but homey thinks it is still on

Not stability, it seems very much like interference, OR a bad PSU;  
2. Are you aware of the fact wifi can interfere with zigbee?  
3. Is your Wifi channel changed? Is it fixed to 1, 6 or 11 in the first place? What’s your zigbee channel atm?  
4. Did any nearby neighbour install an other wifi system which can possibly interfere? Did you measure which wifi channels are busy in your location?

Wifi vs zigbee channels:

 ![Screenshot from 2023-05-30 22-35-38](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/0/8/08f1baa125d9be23080d26e4dff9acb50875d048.png)

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