Its really annoying because Apple is aware this is an ongoing issue for users and refuses to acknowledge it. I've called and spoken to several different technical support reps at Apple and they are clueless. They need to fix this in an update ASAP cause it's happened countless times for me. I know all the different ways to get it working again but it is SUCH a hassle and sometimes happens only one or two days after I get it up and running. Very annoying!