@Jeroen: "<LOCAL MACHINE>" is what I got when I still had an entry for "Ubuntu One" in "preferences / passwords and encrypted keys" (inside the Passwords:login item). Deleting that (and probably the reboot but I didn't need to reboot my 2 other machines) unblocked me.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/696361 Title: Ubuntu sso fails with 'An HTTP non-2xx response code was received' -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs