I've installed Feisty Beta (clean installation) on the same machine, and connected via KNetworkManager as before. The connection was working well. I came back a few hours later, and encountered the same old problem - no network, KNetworkManager hung when I tried to reconnect, lsusb hung as well, etc. and even system shutdown got stuck. A hard reboot brought the system back to normal. I've attached the dmesg output. If there's anything other info that can help, I'd be happy to provide it...
** Attachment added: "dmesg output" http://librarian.launchpad.net/6941304/dmesg.out -- usb wireless device gets stuck, requires reboot https://launchpad.net/bugs/74362 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
