Problem to connect Yeelight Color II

I’m trying to connect my lamp but unsuccessfully. The app finds and starts to check it out, but it arrives at 100% and gives the message: “Connection Timed Out - Check The Current Network and Scan Again”
I must say that my router wifi does not reach my room, what I am doing is activate the mobile hotspot of my computer (which has a wired connection) to connect my phone to the internet