Xiaomi Yeelight Desk Lamp Conneciton Timeout issue

Hello ,
Last month I bought a Xaiomi Desk Lamp(Wifi) but I can not remote it over app it appear on my router list but gives me timeout error.
I applied all steps that explained on manual paper but :frowning_face:
need you help.
Router deatils : device appears as ESP_519F41 in connected device list
Mi Home IOS version
My Home id is : 6387279542

Thanks