I noticed that the Bacckuper version for linux doesn't get the IP address correctly from the USB adapter. The card is correctly detected as seen in console 1, but no downloaded address. As I enter the address manually, this restore works without a problem. But clientdhcp does not automatically get the ip address.
But it works without a problem with the built-in network card. The problem is only with usb network cards. I tried several different ones and it is basically identical, i.e. no ip address.