The WIFI network seemed to be the issue as switching networks now has the sites responding better. It must have been just a coincidence that I ran CCleaner before getting the error. Checking my other devices, they were all connected to the primary network.
Hi, I ran CCleaner on my MacBook Pro yesterday and now cannot reach certain websites on either Safari or Chrome. For example, I can get to ESPN.com but get ‘Safari Can’t Find The Server’ for CNBC.com.