Frederik_Madsen I'm a bit confused, added a GPU to my proxmox server and then the network wnt away after reboot. ifup -a --force does nothing, and no hints. Any ideas?
Boris_Zaitseva What happens if you try to bring the interfaces up manually? ip link set dev <interface> up
Frederik_Madsen No status or error messages, tried with --force and got an error saying either dev or --force is invalid, strange.
Boris_Zaitseva Have you checked /etc/network/interfaces? Make sure that you have the correct device names and no spelling issues.
Frederik_Madsen I'm an idiot, it appears that the device name was incorrect. enp6s0 instead of enp5s0 like it used to be. Of course, it's increased by once since I added that darn GPU. Changed /etc/network/interfaces and rebooted, now it's all up and running again. 👌