Game freezes in frostmourne, but not in icecrown

Hello,
I got some freezing problem on new frostmourne realm. It started when I joined frostmourne realm and in like every 4-6mins game freezes completely. I can't do anything but ctrl+alt+delete. And from there I can only restart PC. Because that problem didn't stop I just continued playing on icecrown where it all magically works just fine.

Did anyone get same problem or know how I can fix it?

try to disable all of your addons

i have the same problem, even tried disable all addons, still have it.