Wake on Lan on Asrock b450 pro4 not working

12eward wrote: For others who have had this problem and were unable to solve it, try this.I had an ASRock A520 ITX and Wake-On-Lan wasn't working, despite updating the Bios to latest version (P3.30). After 2 hours troubleshooting, I think what finally fixed it was there's actually another setting that needs to be turned on in the Bios for WOL to work. To save others the work, here's what I did to get everything working. In the BIOS go to the Advanced Tab: -Click ACPI Configuration -Set PCIE Devices Power on to "Enabled". As you will see from the description, this must be enabled to allow Wake On Lan to work, I don't understand why this wasn't enabled to begin with C'est La Vie. Hope this helps others.

The PCIE Devices Power setting was exactly my problem, thanks!

That setting mentions WOL, but that's not much use if you don't think to look there in the first place. It would've been good if the WOL setting mentioned the PCIE power setting too.