Similar problems in my system after upgrade from 10.10 to 11.04. Network doesn't go up with the system startup. I need to replug the nic to USB slot - then it starts instantly. Afterwards the connection is unstable and slow. The system is stable though - no hangs or whatsoever. I attach relevant lines of syslog.
** Attachment added: "syslog entries relevant to the network card problem" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/773599/+attachment/2126042/+files/syslog.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/773599 Title: rt73usb error - wifi become unfit for use and system hang -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs