I can confirm this issue on an up to date Karmic. The problem occurs with all network interfaces as apparmor seems to enforce rules on dhclient too strict to get a dhcp broadcast out.
** Changed in: apparmor (Ubuntu) Status: New => Confirmed -- [karmic] dhcp fails with wireless link under 2.6.31-5-generic #24 https://bugs.launchpad.net/bugs/408779 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs