IPv6 and Wake on LAN

IPv6 and Wake on LAN

Using Desktop Central with Windows 7 Pro client PCs. I'm having a problem with the Wake on LAN feature. It appears that DC is detecting both the IPv4 and IPv6 addresses of the PCs, and displays them both on the WOL page. The "Broadcast address" is left blank. When trying to wake a PC the resultant error message is "IP, MAC or Broadcast entry not valid".
 
I can manually change the IP address, deleting the IPv6 address in DC, and adding the broadcast address, and then it will wake the PC. However, DC later refreshes the IP addresses and undoes all of my changes. Why does the WOL feature not work with the default IP settings that DC is detecting? Thanks!
 

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