VIM3 M2X Extension requires two ethernet cables?

Which Khadas SBC do you use?

VIM3

Which system do you use? Android, Ubuntu, OOWOW or others?

Ubuntu 20.04 - vim image

Which version of system do you use? Khadas official images, self built images, or others?

Official Khadas Ubuntu 20.04 image

Please describe your issue below:

So I got the VIM3 and I have the poe working but the ethernet in the m2x extension doesn’t allow it to join the network, I had to plug in another ethernet cable in order for it to join the network, how can we go about making the one cable the default for power and data rather than just power