Here is the Gentoo thread in which I located the solution by sheer chance: http://forums.gentoo.org/viewtopic-t-851897-start-0.html
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1077748 Title: If wpa_supplicant's wpa-psk option is not quoted in /etc/network/interfaces, it is silently accepted, parsed incorrectly and fails to authenticate To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ifupdown/+bug/1077748/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs