Condela

Good day. I live in Germany and I have a problem with connecting mobile app
Yeelight (version 3. 1.38) on my HTC U11 with my 2 candela. I tried
connecting many times and always there’s the same problem. When connection
reaches 10 %, it interrupts and connects no more. Why is this problem? How
can I solve it? I attache printscreens from my mobile phone HTC U11. Thanks
in advance for answer. Best regards.