Not sure what to classify this - anyways just wanted to pass the information to the developers probably look into it, if needed. I changed my computer date earlier during the day and forgot to change it back because I was going to perform a fresh Windows install later on. I installed Windows again (still showing the incorrect date during installation which was weird). I was with the intention of changing it once I installed all drivers (wifi included) and sync it with the global Internet clock, but before I did, one of the few programs I installed was Adguard. After setting the correct date, upon using both IE and Chrome, I got the "The server's security certificate is not yet valid! ........................." message. and very few sites worked. After multiple trial and error, I narrowed the problem down to Adguard. I assume the program>plugins was in some way embedded with the date I used during installation and even after setting the correct date, it did not rectify itself. I solved the problem by uninstalling and installing Adguard.