# Ubisys S2 device and "Could not initialize this Zigbee device"

**URL:** <https://community.homey.app/t/ubisys-s2-device-and-could-not-initialize-this-zigbee-device/94675>\
**Category:** Devices\
**Tags:** homey-pro\
**Created:** [November 15, 2023, 8:09am UTC](https://community.homey.app/t/ubisys-s2-device-and-could-not-initialize-this-zigbee-device/94675 "2023-11-15T08:09:35Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Monit](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/monit/32/79472_2.png) [@Monit](https://community.homey.app/u/Monit)\
**Post date:** [November 15, 2023, 8:09am UTC](https://community.homey.app/t/ubisys-s2-device-and-could-not-initialize-this-zigbee-device/94675/1 "2023-11-15T08:09:35Z")

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I have a number of Ubisys Zigbee devices in my Homey Pro 2023. Today suddenly several of them are showing red exclamation mark sign on the device and when I try to use the devices, Homey says “Could not initialize this Zigbee device”. I have no idea what this error message refers to.

Some facts:

- When I go to Homey dev tools, all these devices look normal in the Nodes table and they respond to ping
- For devices that have two outputs, one output is working fine, and one output is broken

First I tried “repair” but it didn’t seem to do anything. I had to completely factory reset the devices, remove them from Homey and re-add them. And obviously had to also add them to all the flows again. A bit annoying.

Does anyone know what the error message means? Is it Homey or app issue or the devices themselves?

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**Author:** ![Thomas\_Brockmann](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/thomas_brockmann/32/16864_2.png) [@Thomas\_Brockmann](https://community.homey.app/u/Thomas_Brockmann)\
**Post date:** [January 4, 2025, 2:44pm UTC](https://community.homey.app/t/ubisys-s2-device-and-could-not-initialize-this-zigbee-device/94675/3 "2025-01-04T14:44:47Z")

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Unfortunately I have no solution, but I experience the exact same with 3 out of 6 S1 units.

At least you are not alone 😐

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**Author:** ![Monit](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/monit/32/79472_2.png) [@Monit](https://community.homey.app/u/Monit)\
**Post date:** [January 4, 2025, 8:42pm UTC](https://community.homey.app/t/ubisys-s2-device-and-could-not-initialize-this-zigbee-device/94675/4 "2025-01-04T20:42:46Z")

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Well, I already got rid of Ubisys devices as they were too unreliable with Homey. Changed them to Robb Smarrt devices that I bought on Black Friday.