# Homey Pro Zigbee Devices left the network **URL:** \ **Category:** Questions & Help\ **Created:** [September 3, 2024, 2:28am UTC](https://community.homey.app/t/homey-pro-zigbee-devices-left-the-network/115404 "2024-09-03T02:28:59Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![strn88](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/strn88/32/90886_2.png) [@strn88](https://community.homey.app/u/strn88)\ **Post date:** [September 3, 2024, 2:28am UTC](https://community.homey.app/t/homey-pro-zigbee-devices-left-the-network/115404/1 "2024-09-03T02:28:59Z")
Hello, Just a minute after the update to 12.0.2, all of my Zigbee devices have left the network. It turned all of the lights on, and are not controllable. Is there something wrong with the Zigbee chip? I have a Homey Pro (2023) ---
**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:** [September 3, 2024, 2:32am UTC](https://community.homey.app/t/homey-pro-zigbee-devices-left-the-network/115404/2 "2024-09-03T02:32:10Z")
> [@strn88](#): > > a Homey Pro Hello strn88, The 2016-2019 (white ball) or 2023 model (black puck)? First thing to do after an update, and Homey fully up and running again: Cut the power for 10 mins ---
**Author:** ![strn88](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/strn88/32/90886_2.png) [@strn88](https://community.homey.app/u/strn88)\ **Post date:** [September 3, 2024, 2:32am UTC](https://community.homey.app/t/homey-pro-zigbee-devices-left-the-network/115404/3 "2024-09-03T02:32:34Z")
The 2023 one ---
**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:** [September 3, 2024, 2:36am UTC](https://community.homey.app/t/homey-pro-zigbee-devices-left-the-network/115404/4 "2024-09-03T02:36:04Z")
You’re not the first with zigbee issues, but I did not read about all devices leaving the network. Only when you’ve created USB offline backups, you can revert to a previous firmware. Maybe the firmware got damaged during the update process; What you also can try: Install a the “Software update”. It installs the firmware from scratch, without altering all your stuff: > [@\[HowTo\]\[Pro 2023/Mini\] Revert from experimental to stable firmware](https://community.homey.app/t/howto-pro-2023-mini-revert-from-experimental-to-stable-firmware/100752/1): > > - Disable experimental updates @ [https://tools.developer.homey.app/tools/settings](https://tools.developer.homey.app/tools/settings) > **Disabling experimental updates is key here!** > - Create a backup! _It’s important for the experimental updates to be disabled_ > NOTE: _You’ll need the backup when things went wrong; so, there’s no need for restoring backups when this procedure succeeds_ > - Follow the steps at [https://support.homey.app/hc/en-us/articles/7263435817116-Connecting-Homey-Pro-Early-2023-to-a-PC-Mac-with-USB](https://support.homey.app/hc/en-us/articles/7263435817116-Connecting-Homey-Pro-Early-2023-to-a-PC-Mac-with-USB). > - Choose _Software Update_ ---
**Author:** ![strn88](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/strn88/32/90886_2.png) [@strn88](https://community.homey.app/u/strn88)\ **Post date:** [September 3, 2024, 2:37am UTC](https://community.homey.app/t/homey-pro-zigbee-devices-left-the-network/115404/5 "2024-09-03T02:37:21Z")
I’ll try that, hopefully that helps. ---
**Author:** ![strn88](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/strn88/32/90886_2.png) [@strn88](https://community.homey.app/u/strn88)\ **Post date:** [September 3, 2024, 2:41am UTC](https://community.homey.app/t/homey-pro-zigbee-devices-left-the-network/115404/6 "2024-09-03T02:41:59Z")
Yea, strange thing is that my sensors using Zigbee are still connected. It’s the lights that are all removed from the network ---
**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:** [September 3, 2024, 2:44am UTC](https://community.homey.app/t/homey-pro-zigbee-devices-left-the-network/115404/7 "2024-09-03T02:44:41Z")
Just to be sure: Did it really say in the timeline messages: “device has left the network”? I added some info to my previous post as well, pls note ---
**Author:** ![strn88](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/strn88/32/90886_2.png) [@strn88](https://community.homey.app/u/strn88)\ **Post date:** [September 3, 2024, 2:49am UTC](https://community.homey.app/t/homey-pro-zigbee-devices-left-the-network/115404/8 "2024-09-03T02:49:39Z")
Yes, here’s a screenshot ![IMG_9128](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/3/5/355a7d9b60ba5a6fb6107fbf6e8b7c370c06831d.png) ---
**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:** [September 3, 2024, 2:57am UTC](https://community.homey.app/t/homey-pro-zigbee-devices-left-the-network/115404/9 "2024-09-03T02:57:30Z")
Oh my. That’s spooky. Send your findings to homey.app/support asap I’d suggest. ---
**Author:** ![strn88](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/strn88/32/90886_2.png) [@strn88](https://community.homey.app/u/strn88)\ **Post date:** [September 3, 2024, 6:00am UTC](https://community.homey.app/t/homey-pro-zigbee-devices-left-the-network/115404/10 "2024-09-03T06:00:01Z")
Any idea how long this step takes? ![IMG_9131](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/4/5/4579787d010a7e5148efd38d21e1f60a22cb1cae.jpeg) ---
**Author:** ![strn88](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/strn88/32/90886_2.png) [@strn88](https://community.homey.app/u/strn88)\ **Post date:** [September 3, 2024, 9:18am UTC](https://community.homey.app/t/homey-pro-zigbee-devices-left-the-network/115404/11 "2024-09-03T09:18:18Z")
I had to re link all lights. With a hue remote you can reset Zigbee devices. Hope that this doesn’t happen very often.