To enable Wake-on-LAN you must enter the BIOS setup (Pressing F2 or Canc at boot). Enter the Advanced, APM Configuration menu and disable the ErP. ErP (Energy-related_products) support determines whether to let the system consume less than 1W of power in S5 (shutdown) state. This feature is not compatible with Power On By WOL and other nice features like Restore AC Power Loss, etc.