# KaKu app or protocol 'freezes'

**URL:** <https://community.homey.app/t/kaku-app-or-protocol-freezes/46317>\
**Category:** Apps\
**Tags:** app\
**Created:** [April 16, 2021, 11:28am UTC](https://community.homey.app/t/kaku-app-or-protocol-freezes/46317 "2021-04-16T11:28:57Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![pvkan](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/pvkan/32/16433_2.png) [@pvkan](https://community.homey.app/u/pvkan)\
**Post date:** [April 16, 2021, 11:28am UTC](https://community.homey.app/t/kaku-app-or-protocol-freezes/46317/1 "2021-04-16T11:28:57Z")

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Hi there all,

Since several weeks all my KaKu (Klik Aan Klik Uit) devices sometimes stop responding to Homey.  
As far as i can see there is nothing happening that could cause this behaviour.  
I am also unable to reproduce it; it just happens out of the blue.  
Approx. 2 times a week.

When my kaku devices are not responding it is not enough to restart the app.  
I have to PTP to get it working again.  
All other protocols are working fine (Zwave, Zigbee).  
I can also not detect any exhobitant usage of CPU of Memory resources.

 ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/4/0/40d7006ee3d82fff38c421a2a45f2785ed46d0cf.png)

(The gap in above picture is the PTP time).  
I have the latest KaKu app on my Homey.  
Before i contact the developer; anybody any suggestions ?

Peter

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**Author:** ![robertklep](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/robertklep/32/160628_2.png) [@robertklep](https://community.homey.app/u/robertklep)\
**Post date:** [April 16, 2021, 11:31am UTC](https://community.homey.app/t/kaku-app-or-protocol-freezes/46317/2 "2021-04-16T11:31:32Z")

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If you are still using the original Athom power supply for your Homey, replace it with another one from a reputable brand (5V, at least 2A).

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**Author:** ![pvkan](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/pvkan/32/16433_2.png) [@pvkan](https://community.homey.app/u/pvkan)\
**Post date:** [April 16, 2021, 11:48am UTC](https://community.homey.app/t/kaku-app-or-protocol-freezes/46317/3 "2021-04-16T11:48:11Z")

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Hi @robertklep ,

Thank you for your suggestion. Unfortunatly that cannot be the cause ( i think)  
because i already use a better powersupply for Homey (2,4 A).  
However it could be defective. I’ll try to find another PS to rule that out (or not).

Peter

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**Author:** ![robertklep](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/robertklep/32/160628_2.png) [@robertklep](https://community.homey.app/u/robertklep)\
**Post date:** [April 16, 2021, 12:01pm UTC](https://community.homey.app/t/kaku-app-or-protocol-freezes/46317/4 "2021-04-16T12:01:58Z")

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It sounds like the microcontroller handling the Kaku (433Mhz) protocol might be crashing.

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<div class="post-metadata">

**Author:** ![pvkan](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/pvkan/32/16433_2.png) [@pvkan](https://community.homey.app/u/pvkan)\
**Post date:** [April 16, 2021, 12:45pm UTC](https://community.homey.app/t/kaku-app-or-protocol-freezes/46317/5 "2021-04-16T12:45:24Z")

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Yeah. kind off.  
In that case my Homey is broken ☹

Peter