Has anyone found that 'wake on network access' works in 10.8.4? I have a few machines that I upgraded and they have all stopped waking from sleep for remote connections, which they were certainly doing without fault before. The machine which is of most concern is an iMac 27" late 2012. This affects almost everything: ssh, VNC, AppleTV, 'Back to My Mac' over iCloud - all these woke the machine from sleep and let me access previously. One thing still wakes the machine and that is sending an explicit 'wake on LAN' magic packet, so the issue seems certain to be software. Anything obvious I've missed or am I looking at leaving my computers on 24/7 until 10.8.5?