Can't link the yeelight with google home

I tried to link the yeelight app but there are no any device in the google home. After select yeelight and log in , The google home app will return to the same add device page all the time.

That’s because yeelight updated the firmware and disabled wan control of the bulb, this company is not to be trusted, return the product as faulty and dont buy any more yeelight products

Damm even I am having a similar kind of issue, I have searched all over the internet and even have posted on number of threads on different forum, no solution seems to work. I am really frustrated, can anyone of you here help me resolve this issue, I am very much tired now.