we have Raspberry Pi CM4 with Ubuntu. On board ethernet adapter (eth0) is connected to internet and USB to ethernet adapter (eth1) connected a device with a static ip.
When we plug the eth1 internet connection goes away.
Here is our netplan yaml;
Network: Version: 2 ethernets: eth0: dhcp4: true eth1: dhcp4: false addresses: [192.168.5.15/24] gateway4: 192.168.5.1
Thanks for helps.