I just migrated to a 3TB Fusion drive iMac and it will not awaken when the network Apple TV 3 tries to load the iTunes library... on WLAN (Linksys/Cisco router) Energy Saver/Wake For Network Access is checked I even tried UNchecking "Put Hard Disks To Sleep" Also tried "Enable/Disable Power Nap" both ways. This worked before on my previous iMac/1TB/Lion on LAN (same router setup) Any ideas? (Other than setting Computer Sleep to NEVER) Is it because I'm on wireless now? :-/ Does "Wake" require a LAN connection? Because I changed iMac hardware, connection type and OSX I'm not sure what caused this to no longer work. Differences - 2010 iMac vs 2012 iMac LAN vs WLAN 10.7.6 vs 10.9.1 One thing I noticed is a new checkbox in iTunes/GetInfo "Prevent App Nap" though it's probably not related, tried this as well.