cat /etc/systemd/network/eth.network
[Match]
Name=eth*
[Network]
MulticastDNS=yes
DHCP=yes
sed -i 's/#MulticastDNS=yes/MulticastDNS=yes/' /etc/systemd/resolved.conf
systemctl daemon-reload
systemctl restart systemd-resolved
systemctl restart systemd-networkd
It's also important to disable avahi. For wireless, just enable iwd and associate with the router using iwctl.