# Trust zigbee led dimmers loses connection

**URL:** <https://community.homey.app/t/trust-zigbee-led-dimmers-loses-connection/119546>\
**Category:** Questions & Help\
**Created:** [November 2, 2024, 6:10am UTC](https://community.homey.app/t/trust-zigbee-led-dimmers-loses-connection/119546 "2024-11-02T06:10:39Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Roelof\_Bakker](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/roelof_bakker/32/119173_2.png) [@Roelof\_Bakker](https://community.homey.app/u/Roelof_Bakker)\
**Post date:** [November 2, 2024, 6:10am UTC](https://community.homey.app/t/trust-zigbee-led-dimmers-loses-connection/119546/1 "2024-11-02T06:10:39Z")

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I have 3 built-in LED dimmers from Trust. These have worked for 8 months without any problem. But sometimes I get the message that there is no response and whether the device has power. The solution is not to “repair” the module, but to pair it again, which will work. It indicates that the module had already been added and works again for another day. After a day or sometimes 2 the same thing again. About 1 week this probleem started with one dimmer, now 3 dimmers have the same problem. Who knows what could be causing this??

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**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:** [November 2, 2024, 7:54pm UTC](https://community.homey.app/t/trust-zigbee-led-dimmers-loses-connection/119546/2 "2024-11-02T19:54:10Z")

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This can be caused by all kinds of things.  
When you did not update anything (also no auto updates!), it is possibly a changed (wifi) interference issue.

Maybe you’ll have to add an extra router device (in theory any mains powered zigbee device).

You’d check if your 2.4GHz wifi channel is on a fixed channel, and does not interfere with the used zigbee channel  
Maybe a close neighbour changed their wifi.

> ![Screenshot_20210413-165254_Chrome~01](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/2/9/29f6698638a638a6c12d8e2167f46b2960c6e466.jpeg)

Useful info:

> [@Advanced Zigbee Troubleshooting on Homey](https://community.homey.app/t/advanced-zigbee-troubleshooting-on-homey/115930):
>
> If you’re experiencing issues with your Zigbee network on Homey, here are advanced troubleshooting steps to help optimize performance and stability, especially in more complex environments: Power Supply Integrity A stable power supply is critical for Homey’s performance. An underpowered adapter can lead to instability in the Zigbee network. Always ensure you’re using a reliable adapter providing at least 2A. Power fluctuations can cause disconnections or communication failures, especially un…

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<div class="post-metadata">

**Author:** ![Roelof\_Bakker](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/roelof_bakker/32/119173_2.png) [@Roelof\_Bakker](https://community.homey.app/u/Roelof_Bakker)\
**Post date:** [November 3, 2024, 11:07am UTC](https://community.homey.app/t/trust-zigbee-led-dimmers-loses-connection/119546/3 "2024-11-03T11:07:56Z")

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I have more than 14 Zigbee nodes, so i think the signal must be goed. The thing i changed was a new Router for internet use. Is was set for automatic WIFI channel, so it could be possible a reason for thos problem. I now set the WIFI to a fixed channel 8. Yesterday i have paired once again 3 node’s, all KAKU led dimmers ZCM300. They working after pairing, know i have to wait is this problem is solved. Thanks for the tip!