A minute is really long; can you please do "journalctl -b > journal.txt" and attach journal.txt here? Please do that for both cases (connected and not).
What do you have in your /etc/network/interfaces? ** Changed in: systemd (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1431836 Title: Boot process takes too long when Ethernet is not connected To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1431836/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs