Hello!
The latest kernel update for my TV box (linux-image-legacy-rk322x_23.8.1_armhf) broke my Wireguard server:
[#] ip link add wg0 type wireguard
RTNETLINK answers: Operation not supported
Unable to access interface: Protocol not supported
[#] ip link delete dev wg0
Cannot find device "wg0"
wg-quick@wg0.service: Main process exited, code=exited, status=1/FAILURE
Failed to start WireGuard via wg-quick(8) for wg0.
I think it's a problem in the kernel headers, which are missing.
I downgrade to version 21.08.1 and everything is working fine.
Did anyone else have the same issue?