The way your APC software commands the shutdown dictates how the hardware behaves when power returns.
If you followed the "Best" settings and it still fails, run this checklist:
Here is the best approach to integrating these two technologies for maximum uptime and control. 1. The Core Strategy: Graceful Shutdown vs. Remote Start
To get the most out of the APC UPS Wake on LAN feature, administrators should follow best practices for implementation:
: The most reliable way to wake up after a total power loss is setting the BIOS "Restore on AC Power Loss" (or "AC Back") setting to Always On . When the UPS restores power, the computer sees the "AC change" and boots automatically without needing a manual WoL signal. apc ups wake on lan best
The APC UPS Wake on LAN feature works by integrating with the APC UPS device's network management card (NMC). The NMC is a hardware component that enables remote monitoring and control of the UPS device. When a server is connected to the APC UPS device, the NMC can send a WOL packet to the server's NIC, instructing it to power on or wake up.
Best practices for APC UPS systems involve utilizing BIOS/UEFI "Restore on AC Power Loss" settings for reliable post-outage recovery rather than relying on Wake-on-LAN (WoL) packets. While WoL can be triggered via APC PowerChute scripts or Network Management Cards (NMC), configuring the BIOS to "Always On" or "Last State" provides the most consistent automation. For more details, visit Schneider Electric Community . Solved: Wake On LAN (WOL) behind a Smart-UPS
If you have an APC Smart-UPS with a Network Management Card (NMC), you have the best setup possible without an extra PC.
Ensure the APC Network Management Card and your WoL-broadcasting devices live on a secure management VLAN. Because WoL packets use UDP broadcast ports (usually Port 7 or 9), you must configure your routers for "Directed Broadcasts" if you plan to wake up machines across different subnets. The way your APC software commands the shutdown
APC UPS and Wake-on-LAN: Best Practices for Remote Power Management
Download the "APC PowerChute Personal Edition" and the "WakeMeOnLan" (NirSoft) utility to test your Magic Packet delivery right now.
(via PowerChute or Network Management Card) tells your PC to shut down safely when battery levels are critical. Wake-on-LAN
: A low-power device like a Raspberry Pi or ESP32 can be programmed to send a WoL packet to your main server a few minutes after power is restored. Recommended APC UPS Models for Network Environments The Core Strategy: Graceful Shutdown vs
Since the UPS itself won't "wake" your PC over the network, the most reliable configuration involves the following steps:
Several APC UPS models support the Wake on LAN feature. Here are some of the top models:
This may be listed as "Wake on LAN", "Resume by PCIE Device", or "PME Event Wake Up".