# Force hybrid shutdown off (enables WoL from full shutdown)
powercfg /h off
Most users connect their UPS to a PC/NAS via USB. We can script the "Best" behavior using Linux tools like `apc
Title: Wake-on-LAN with APC UPS: Best Practices for Reliable Remote Startup
Content:
If you’re using an APC UPS to protect servers or critical PCs, combining it with Wake-on-LAN (WoL) ensures you can power on devices remotely after a controlled shutdown. Here are the best practices to make it work reliably:
1. Match UPS Model with WoL-Friendly Features
Not all APC UPS units support WoL passthrough. For best results, use a Smart-UPS or Back-UPS Pro with a USB or network management card (AP9630/AP9631). These can send a “power restored” signal that triggers WoL. apc ups wake on lan best
2. BIOS & NIC Configuration (Critical)
3. APC Software Integration
4. Avoid Common WoL + UPS Pitfalls
5. Testing Your Setup
Best-in-Class Recommendation
For the most reliable APC + Wake-on-LAN setup, use:
This combination ensures your device wakes from UPS-induced shutdown every time — no manual intervention needed.
Maximizing Reliability: APC UPS and Wake on LAN Integration Integrating an APC Uninterruptible Power Supply (UPS) with Wake on LAN (WoL) technology is a common goal for users seeking to manage remote servers or workstations effectively. However, it is a frequent misconception that the UPS itself sends the "Magic Packet" to wake a computer. Instead, reliability is achieved through a combination of BIOS power settings UPS management software network hardware Schneider Electric Community How APC UPS and Wake on LAN Work Together
In a typical power-loss scenario, the UPS does not interact with WoL directly. Instead, a specific sequence ensures the system can reboot or be woken up remotely once power is restored: Server Fault Graceful Shutdown : During a power outage, APC PowerChute software triggers a safe shutdown to prevent data corruption. Automatic Restart (The WoL Alternative) : Most users configure their computer's BIOS/UEFI to "Restore on AC Power Loss" # Force hybrid shutdown off (enables WoL from
or "Last State". When the UPS detects stable utility power and restarts its outlets, the computer automatically boots up without needing a WoL packet. Active Wake on LAN
: If a computer is manually shut down (not due to power loss), it remains in a low-power state. To wake it, a separate device on the same network—such as a Raspberry Pi network router —must send the "Magic Packet". Best APC UPS Models for Managed Environments
| Task | Command / Location |
|---|---|
| Enable WOL BIOS | BIOS/UEFI power settings |
| Enable OS NIC wake | Device Manager or ethtool (wol g) |
| Send WOL locally | etherwake/wakeonlan/Send-WOL |
| Remote across subnets | Router forwarding or WOL relay/VPN |
| UPS-based orchestration | PowerChute / SNMP traps / Network Management Card |
For the best Wake-on-LAN experience with an APC UPS: Title: Wake-on-LAN with APC UPS: Best Practices for
Pro Tip: APC Smart-UPS with the optional NMC (Network Management Card) can send SNMP traps. You can configure a script that listens for "UPS: On Battery" and automatically sends a WoL packet to other sleeping devices to wake them up as a cluster before the battery dies.