Is this perhaps a desktop system, where the network is only available after you login, because of network manager? Or is it a server?
Is it a fresh install of ubuntu bionic 18.04, or did you upgrade from a previous release? This matters because 18.04 uses netplan for networking by default if it's a fresh install.
Thanks for filing this bug in Ubuntu.
Is this perhaps a desktop system, where the network is only available after you login, because of network manager? Or is it a server?
Is it a fresh install of ubuntu bionic 18.04, or did you upgrade from a previous release? This matters because 18.04 uses netplan for networking by default if it's a fresh install.