This might be a dumb question, but my friend who is not the greatest when it comes to technology has had a lot of problems going on the internet lately. More often than not, he gets the following errors, on Safari it says "Safari Can't Open the Page. Safari can't open page....because Safari can't establish a secure connection to the server ...." and on Chrome it says "Your connection is not private. Attackers might be trying to steal your information from ......(for example, passwords, messages, or credit cards.)....then it says "NET::ERR_CERT_DATE_INVALID'.... any ideas on what might be causing this? he has CenturyLink for his internet i believe.