eth0 down after fresh install of 25.5.1

[Malz]

Hi,

 

I wanted to give my Odroid M1 new life by installing a fresh Armbian 25.5.1. Previously it was running on an old Odroid Ubuntu Image.

 

After starting from SD I have no ethernet connection. The eth0 interface is DOWN. I tried using a USB3 2.5G ethernet adapter, but the new network interface also shows DOWN.

I have tried Debian and Ubuntu Minimal images with the same results.

 

What could be the cause and how do I get a working ethernet connection?

 

Thanks

Malz

[Malz]

Forget about it. 

The problem was the switch at my work desk which seems to be dead. So no physical connection...