The total number of wake-up packets that the Wake-On-LAN Communication Manager is waiting to transmit on the network was continuously greater than 10,000 for three hours or more.
Network traffic might be very high, which prevents the Wake-On-LAN Communication Manager from being able to transmit wake-up packets.
Adjust the Wake-On-LAN pacing controls so that the wake-up packet send rate is reduced. To adjust the pacing, navigate to System Center Configuration Manager > Site Database > Site Management. Right-click <site code> – <site name> and then click Properties. On the Wake On LAN tab, click Advanced. By using these controls, you can adjust the wait times between sending groups of packets.