I have this same issue. I looked around, and found bug#38917, which seems to be about the same issue (and possibly have a patch), and found this page, which talks about it also: http://www.students.ncl.ac.uk/a.j.mee/blog/index.php/software/networkmanager/pptp-plugin/pptp-plugin-faq/
-- dns is not properly functional https://launchpad.net/bugs/74590 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
