How to connect orangepi pc to the internet? The error message appears after inserting ethernet cable.

Use newest kernel, use other distro (e.g. ubuntu)

Hi,

What message appears ?

Wired ethernet/Internet works for me out of the box
currently running Debian.
Make sure you build the OS micro SD correctly: your uImage and script.bin has to match your configuration: rename, copy and replace on the micro-SD.