Hi, Hoping someone can help. I have Macbook Pro running OS 10.9.5. Suddenly webpages stopped loading unless they have https. So google, facebook, netflix OK but not apple.com, wikipedia etc I have cleared all network settings and tried adding DNS to various suggestions I have read about. All other mac computers work perfectly on my home network except this one macbook pro so it must be a setting?? It is the same for all browers on this macbook i.e. safari, firefox, chrome I have also tried creating a new user but the same thing happens. Could it be a virus?