# Help KNX, Dali and Homey - "All lights off" function

**URL:** <https://community.homey.app/t/help-knx-dali-and-homey-all-lights-off-function/134613>\
**Category:** Questions & Help\
**Tags:** homey-pro-2023\
**Created:** [April 13, 2025, 7:48pm UTC](https://community.homey.app/t/help-knx-dali-and-homey-all-lights-off-function/134613 "2025-04-13T19:48:20Z")\
**Posts on this page:** 1\
**Showing post:** 8

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**Author:** ![Rmb](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/rmb/32/79135_2.png) [@Rmb](https://community.homey.app/u/Rmb)\
**Post date:** [May 21, 2025, 11:10pm UTC](https://community.homey.app/t/help-knx-dali-and-homey-all-lights-off-function/134613/8 "2025-05-21T23:10:56Z")

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> [@NordicPulse](#):
>
> Anyone run into something similar with Homey + KNX + DALI?

I have seen post that users experience the same problem with lamps directly connected to Homey. Is seems that when Homey switches a large group of lamps, Homey has to send a lot of messages and some of these messages get lost. This is a general Homey problem, existing for quite some time. Looks like a message buffer overflow.  
See [[Feature Request] Groups - #3 by robertklep](https://community.homey.app/t/feature-request-groups/32703/3)

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