# Zigbee could not start

**URL:** <https://community.homey.app/t/zigbee-could-not-start/49335>\
**Category:** Questions & Help\
**Tags:** zigbee\
**Created:** [July 11, 2021, 5:35pm UTC](https://community.homey.app/t/zigbee-could-not-start/49335 "2021-07-11T17:35:03Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![MortenSvendsen](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/mortensvendsen/32/33829_2.png) [@MortenSvendsen](https://community.homey.app/u/MortenSvendsen)\
**Post date:** [July 11, 2021, 5:35pm UTC](https://community.homey.app/t/zigbee-could-not-start/49335/1 "2021-07-11T17:35:04Z")

</div>

Hi  
After the latest update, i had to pair all my zigbee devices again, but then i got in to trouble when i hit 15, and was trying to start again.  
When i try to add anything then it just says that Zigbee could not start, and i cant add anything.  
And now i dont know what to do, should i factory restart?  
Anybody have experienced the same?

---

<div class="post-metadata">

**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 11, 2021, 6:47pm UTC](https://community.homey.app/t/zigbee-could-not-start/49335/2 "2021-07-11T18:47:42Z")

</div>

Lots of info and hints in this topic (not only this post):

> [@Zigbee network not acception any more devices?](https://community.homey.app/t/zigbee-network-not-acception-any-more-devices/49042/6):
>
> It might be a &#%×"\> but removing some end devices, and adding some router devices should do the trick. Then you could try to add those end devices, and your new ones again. And then pair them, in Robert’s words, at or near their final location. [Athom’s zigbee advice here](https://support.athom.com/hc/en-us/articles/360019239879-Advice-on-building-a-stable-Zigbee-network). Regarding zigbee channel 11: wifi channel 1 can still be busy if you have neighbours with wifi whithin wifi range. You can check it with Android tools: Wifi Analyzer (and Wifi Heatmap can also reveal interesting info) I…

---

<div class="post-metadata">

**Author:** ![MortenSvendsen](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/mortensvendsen/32/33829_2.png) [@MortenSvendsen](https://community.homey.app/u/MortenSvendsen)\
**Post date:** [July 11, 2021, 7:04pm UTC](https://community.homey.app/t/zigbee-could-not-start/49335/3 "2021-07-11T19:04:32Z")

</div>

Hi Peter\_Kawa

Thanx for your respond.  
I have read many of these posts. And I know the problem about how to build the mesh network.  
Now the problem is that i have removed all the zigbee devices, and now the app tells me that zigbee can not start.

 ![Screenshot_20210711-210543_Homey](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/5/4/5420f6d64ed729f2862823545c16f1add85901f4.jpeg)

---

<div class="post-metadata">

**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 12, 2021, 1:25am UTC](https://community.homey.app/t/zigbee-could-not-start/49335/4 "2021-07-12T01:25:51Z")

</div>

YW.  
Oh what a bummer, please contact [support@athom.com](mailto:support@athom.com).

---

<div class="post-metadata">

**Author:** ![AlwinK](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/alwink/32/60974_2.png) [@AlwinK](https://community.homey.app/u/AlwinK)\
**Post date:** [January 21, 2025, 9:27pm UTC](https://community.homey.app/t/zigbee-could-not-start/49335/5 "2025-01-21T21:27:50Z")

</div>

FYI, the solution support offers is listed in [this forumpost](https://community.homey.app/t/zigbee-kunne-ikke-startes-zigbee-could-not-be-started/74432). Worked for me!