HELP YEELIGHT OFFLINE

hi I got one problem is there anyone that could help me? I got this light strip plus from yeelight and I had lots of trouble to get it synced with the yeelight app and servers, I found Russian server works for me, when I finally did it wouldn’t stay connected, it would display offline after a couple seconds sometimes minutes, and in my router settings it shows as inactive… what should I do? I’ve changed dns on my modem, restarted multiple times, reset and sync many times the lights and also I’ve changed servers but only russ stays connected the longest.

it worked shortly on Singapore server, back to Russ, even then only few mins now its back offline