Yeelight Classic funktioniert nicht

Compatible Yeelight devices include bulbs, desk lamps, ceiling lights, ambiance lights and all future products.  Google Assistant connects seamlessly with Yeelight devices, so you can use your voice to control your lights.  Add, configure, monitor and control your Yeelight products on your mobile devices with a touch of your fingertip.  Monitor and control your Yeelight devices from anywhere in the world, as long as they are connected.  With Yeelight APP, controlling lights becomes such a fun and easy thing.  Group your devices together as Rooms or Groups for easy control.  IFTTT is a free platform that helps you achieve more amazing implements by connecting with all your APPs and devices.  Talk to Alexa and control your lights.  Interact with your Mi band to turn your lights off when you fall asleep.  Save the moment of your devices to Scene for future use.  Play with lights, compose with colors.  Schedule your device to perform certain lighting effects on set time schedule.  Updating special presets to choose from for different user scenes.  Just say “Alexa, dim my bedroom light by 50%,” and your Amazon Echo/Dot will adjust the brightness automatically.  Yeelight is an open platform, all developers are welcomed to submit your own tools and share with millions of Yeelight users all over the world.