Yeelight Led Smart Lamp D2 freezing

I have 3 pieces of “Yeelight Led Smart Lamp D2” and they all have the same problem.

I have them connected to wifi and the official yeelight app.

It doesn’t matter if they have “Lan Control” on or off. I have the same issue regardless of whether “Lan Control” is on or off.

After connecting the lamp to the wall, it is normal that I have to do a reset by holding the power button and the volume button. After the reset, everything works as expected.

After turning off, the issue appears. The issue is that many times I try to turn on the lamp by tapping the on/off button OR accessing the official app and what I get is a single quick blink and that’s it. The lamp blinks and from then on I can only turn it on after another reset.

That issue is very common and it happens to all the yeelights I have.

Firmware is updated. After the issue the lamp appears as offline on the official application.

Any suggestion on how to fix such issue and what to do? Anyone else having the same issues?

Best regards,
Thiago