My dad has come back from China and neither Facebook nor Youtube load anymore. I am aware China blocks those websites from working but now back in Australia he still can't access those sites. He can access his accounts on other computers, just not his laptop. I have cleared cookies, deleted browsers and reinstalled, tried to logon as a different user on the same comp but nothing. He has OSX. Not sure what else to do apart from formatting and installing everything again to see if that works.
Any help will be appreciated.