I have been having the same problem for about 2 days. It seems a lot of people are and I too have Comcast. Nedfit posted this reply in a different thread about bad hosts. I noticed all of mine were close to the same number and browsed all of them and guess what? ALL BAD! I'm in the process of getting new ones. Will let you know if this fixes the problem. My bad hosts were 204.11.219.232 and 204.11.219.229


From nedfit:
No reinstalling or deleting necessary for me. I just removed the bad hosts I was connected to.
But I just checked back on my connections and it looks as if one of them has made their way back. The host number is 204.11.219.231. If you are connected to a similar number you will lose search results. You can tell if it is bad by browsing it. If the browse comes back with an error get rid of that host.