First off, pardon me if this is not where I should ask IT questions. If there is another StackExchange site (or site in general) that I should go to by all means let me know.
One of our employees came by saying that his computer will not access the internet. He attempted with Chrome, Firefox, and IE, to no avail. But he found that he could access (and log into) Facebook, Gmail, and his college's email account. But he could not even access Google or CNN.
We managed to get Spybot S&D and MalwareBytes on his computer and scanned it. MalwareBytes found nothing, and Spybot found the usual tracking cookies.
We tried the same thing while in safe mode and also tried restoring to an earlier point.
Nothing has worked so far, and we have been left scratching our heads for answers.
Thank you in advance.