Ceiling lights are disconnecting from wifi since last firmware update

Dear all,

My 2 yeelink.light.ceiling5 disconnects from the wifi 1-2 hours after reseting.

If i want to use them again, i need to restart the power supply but they disconnect again.

ID:1916633266

This is happening since the last firmware update 2.0.6_0027 12 months ago.

They are connect to 2.4Ghz wifi.

Nobody from yeelight is answering in the forum

I need a solution

Best regards,

Ruben