Timeout Yeelight lamp C2201C235

Hi,

I have the same problem as other users with two of these lamps. They disconnect both from Wifi and bluetooth (I have a Yeelight smart dimmer) , so it’s not my router.

I saw that there was at some point a solution to login with a Yeelight account and update firmware but the password for that account no longer works.

Is there any other solution for this ?
My account is 6180127513 / Romania.