DNS blocking Very unstable lately

Okay, I’m a little sick of this DNS system blocking all sorts of random websites for like several hours. It’s been going on for the past week or two. At one point it was blocking facebook and then Dr. Phil’s website. I mean come on… The firewall has also been giving me trouble lately… When I see other people posting this problem and then the response is “Even though there isn’t maleware, it still might not be good for the public.” This to me sounds like you’re purposely blocking these sites for non-security reasons. I’ve always enjoyed using comodo but if this keeps going, I might have to look somewhere else.