I've recently updated one of my machines from Ubuntu 21.10 to 22.04
without any major issues. However, it seems like my Wake-on-LAN configuration
has broken down somehow.

WoL is enabled at the BIOS/UEFI level and a systemd service is run during
boot:

[Unit]

Description=Enable Wake-up on LAN



[Service]

Type=oneshot

ExecStart=/sbin/ethtool -s %i wol g



[Install]

WantedBy=basic.target

Now however, this command just yields:

netlink error: Operation not supported

And even when checking with ethtool manually by running:

sudo ethtool enp4s0

There's no mention of Wake-On: anymore. Has something changed in 22.04 to the
network stack that disables WoL support? Or is there something I can do to debug
this further?