Im sure alot of people know this stuff. long story short pixeldrain wouldnt connect for me. turns out simply flushing my dns is a fix. simply just open the console on your desktop and or cmd through a shortcut or simply using Win+R and typing cmd, afterwards simply type ipconfig/flushdns and restart your browser if you havent already. if that doesnt work you can also reboot your router too. doing both is the thing that seemed to have fixed it for me.
hope i helped some people here!
ps:sorry if some of the things i said are grammatically wrong, english isnt my first language!