I would reset the device according to the instructions and try again. This is not normal.

Hello, new for me today too! What's next? Thank you

Me too. I don't understand it.

Never worked for me. I now have.... couldn't take care of the app and the connection didn't work

possibly...did you check the settings in the app (timings etc.)? I don't have such a problem

It could be. I know Ledvance lamps do that when they were already detected and registered by the app and then later for some reason, which I never understood, the lamp looses the registration. Is it possible that the wifi signal is very weak where your plug is? Try to put it closer the the wifi router to test if that's the problem.

Didn't have this problem. Reset everything and try pairing again.