NEC Express5800/320Fd-LR User Manual page 433

select the following option from [Power Management] tab:
Wake on Magic Packet from power off state
TIPS:
Wake On Magic packet is unavailable even it it is checked.
Is Hub/Client fixed as 1000M?
→
Check the following configurations:
－Set the Hub as "Auto-Negotioation."
－Set the Client as "Auto-negotiate best speed."
IMPORTANT:
For both Hub/Client, you cannot function Wake On LAN from standby with
the 1000M fixed configuration.
Do you happen to be sending Magic Packet to only one of the duplexed LAN?
→
If you use Wake On LAN under duplexed LAN, you need to send Magic
Packet to all of the duplexed LAN pair(s).
Troubleshooting 7-23