WOL ! : required packages "build-essential libelf-dev ethtool" Generally in H4, the network interfaces are named as enp1s0 and enp2s0. Check ethernet interfaces of the system with "ip link" to see if enabled (g), use "ethtool enp1s0 | grep Wake" also check "grep . /sys/class/net/*/device/power/wakeup 2>/dev/null" enable temporarly with "ethtool -s enp1s0 wol g" enable persistent with # /etc/systemd/system/wol@.service

Description=Wake-on-LAN for %i Requires=network.target # After=network.target After=network-online.target

ExecStart=/bin/sh -c "ethtool -s %i wol g" Type=oneshot

WantedBy=multi-user.target