I have exactly the same problem and have updated and booted my system today. I attach the dmesg log here.
** Attachment added: "output of the dmesg command" http://launchpadlibrarian.net/9469112/dmesg.log -- (Gutsy)Network Manager silently drops connections with USB wifi adapter using zd1211rw driver https://bugs.launchpad.net/bugs/140022 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
