Yeelight ledstrip connection timed out

I’ve tried connecting to my yeelight aurora plus from my Huawei P8 Lite, but the only response I got was: ‘‘Connection timed out.’’
I tried almost everything, even changing my DNS server didn’t work.
I checked everything, my router is on 2,4 gHz. I really don’t know what to do now, because I already tried everything I could.
I already have installed another smart light bulb v2, so my router didn’t block yeelight.
Can you guys please help me out, cause I’ve tried to make it work for the past 4 hours,
Thank you.