# Can control a device via developer tool, not via homey app

**URL:** <https://community.homey.app/t/can-control-a-device-via-developer-tool-not-via-homey-app/150276>\
**Category:** Questions & Help\
**Created:** [January 29, 2026, 7:28pm UTC](https://community.homey.app/t/can-control-a-device-via-developer-tool-not-via-homey-app/150276 "2026-01-29T19:28:05Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Superbuis](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/superbuis/32/3564_2.png) [@Superbuis](https://community.homey.app/u/Superbuis)\
**Post date:** [January 29, 2026, 7:28pm UTC](https://community.homey.app/t/can-control-a-device-via-developer-tool-not-via-homey-app/150276/1 "2026-01-29T19:28:05Z")

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Hi. I have a homey 2016-2019. Since a couple of weeks I cannot controll a device (smart plug switch Z-wave) from the homey app or my.homey.app anymore. Not via a button, not via a flow. But I can manage it via the Homey Developer Tools page (send basic on/off). How can I fix this? I tried to update the route as well, but that didn’t work.