Yeelight RGB 2 problems from the start

Hi there. I bought a three pack of yeelight to give a try to this brand XIAOMI. I could not connect a single one. I am in Europe. Tried to connect through all the servers. Using an iphone 7 plus Speedport router. The router doesnt show the lamp. DNS is set to googles. resarted many times, used both apps. ALWAYS stacks at 25 percent. All in all very negative first experience. Is there any solution or should i sent the lamps back.

try making a hotspot with some phone, see if it connects…