If you are struggled with a distro with systemd for a random reason, you can fix this dumb nonsense of network devices with this command:
ln -s /dev/null /etc/systemd/network/99-default.link
I don't know what will break doing this, but since I'm testing this crap using a VM, I don't really care (but you should, so beware where are you doing this). I've tested on Debian and Arch.
Some people reported that most problems with network manager can be fixed when doing this.