I just have to reply, not trying to offend or anything like that;
Smartguard is sneaky RAT, nothing to to with dns settings, If I leave Firewall at prefered settings I get this
https://goo.gl/ldoRs6 even with exceptions added in the right configs.
Then I lower prefered Firewall wall setting - Bing! starts like a charm
https://goo.gl/d07NiyThen while logged In switching FireWall back to prefered setting results in a few seconds - instant Disco
https://goo.gl/5y3sU7 So Nothing to with dns settings, the fact is that a hidden process that I cant add to firewall exceptions because its hidden - is trying make unauthorized outbound connection - simple as that.
Forgot to add, those who connect without any issues - The Firewall they are using is shit, may as well not have one ;p
P.S.
If want check dns speeds out
DNS Jumper is nice tool