I had Wake-On-LAN working in Lion, but since I upgraded (via a fresh install) to 10.8 I can't get WOL working using the "fixes" I used in 10.7. There is a 4-page thread over in the Lion forum, which is what I used to get this working on Lion. So far nothing works (for me) in Mountain Lion. Is there a new setting I need to check? I'm running the same computer "Early 2011" MacBook Pro. Edited /Library/Preferences/SystemConfiguration/com.apple.Boot.plist Code: <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>Kernel Flags</key> <string>darkwake=0</string> </dict> </plist> Also updated /Library/Preferences/SystemConfiguration/com.apple.PowerManagement.plist Changed "PrioritizeNetworkReachabilityOverSleep" to "1". Computer still won't wake.