Any help would be appreciated, I had WOL working on my previous sytem and really would like it to function again.
I'm using Kubuntu 20.04 LTS. I viewed other threads with no solution applied to me

For some reason WOL only works a few seconds after shutdown, I tried both command shutdown and UI. I also made the file /etc/defaults/halt and inserted NETDOWN=no
Wakeonlan is enabled in the BIOS (Asrock b450m pro) (allow wake up from pcie devices)

wol is enabled even after reboot:

sudo ethtool enp4s0
[...]
Supports Wake-on: pumbg Wake-on: g
[...]

netplan:

# Let NetworkManager manage all devices on this system
network: version: 2 renderer: NetworkManager ethernets: enp4s0: match: macaddress: a8:a1:59:2c:4f:4e dhcp4: false addresses: [192.168.0.99/24] gateway4: 192.168.0.1 nameservers: addresses: [192.168.0.1] wakeonlan: true

5

1 Answer

Ok, this might seem stupid but I used to be able to unicast the magic packet, at least that's how I remember it.
It was necessary to direct it to the broadcast (.255) address.
Doesn't work: wol -i 192.168.0.123 a8:a1:59:2c:4f:4e'
Works: wol -i 192.168.0.255 a8:a1:59:2c:4f:4e

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