# Lights not working in Homey since last night (WiFi & Zigbee)

**URL:** <https://community.homey.app/t/lights-not-working-in-homey-since-last-night-wifi-zigbee/142337>\
**Category:** Questions & Help\
**Tags:** app, zigbee, wifi, homey-pro, lights\
**Created:** [August 28, 2025, 4:40am UTC](https://community.homey.app/t/lights-not-working-in-homey-since-last-night-wifi-zigbee/142337 "2025-08-28T04:40:02Z")\
**Posts on this page:** 1\
**Showing post:** 6

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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:** [August 28, 2025, 11:49pm UTC](https://community.homey.app/t/lights-not-working-in-homey-since-last-night-wifi-zigbee/142337/6 "2025-08-28T23:49:30Z")

</div>

> [@Cam](#):
>
> card unavailable

(also to @Arnoud_Fleer) This indicates app problems.  
Possibly it’s the IPv6 bug:  
If Homey firmware is lower than v12.4.5, update firmware;

 ![Screenshot_20250829_014808_Chrome](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/4/c/4c42471b3b77ec4fb1f7e94e8d3be570d05f72ac.jpeg)  
(the description is not complete: _ **or when installed apps disappear** _ should be included).

if it’s v12.4.5 or up:  
disable IPv6 on on your router and see if this fixes the issues.

If true: please do report to homey.app/support the IPv6 bug is _ **not** _ resolved

[#IPv6 bug](https://community.homey.app/search?q=ipv6%20order%3Alatest)

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_[View the full topic](https://community.homey.app/t/lights-not-working-in-homey-since-last-night-wifi-zigbee/142337)._