Enter the Ctrl S bios during POST, enter the Broadcom bios. Then you can turn on the Wake-on-LAN setting.  It is not in the F2 bios.  Regards, 
Hi I am using a PE R210 and am having trouble finding the Wake-On-LAN setting in the BIOS. The BIOS version is 2.2.3. Can someone help me with this, please. Thanks! Mark
Wake-On-LAN R210 