I ran into a similar situation just now, where my computer (an old Asus Pundit-R with a Pentium IV) would lock up hard upon inserting a Broadcom PCMCIA adapter (BCM4318).
Can you try this procedure: 1) sudo apt-get purge broadcom-sta-common broadcom-sta-source bcmwl-kernel-source b43-fwcutter firmware-b43-installer 1a) reboot 2) sudo apt-get install b43-fwcutter 3) do "Step 2" and "Step 3" here: https://help.ubuntu.com/community/WifiDocs/Driver/bcm43xx#b43_-_No_Internet_access 4) shutdown computer 5) unplug PCMCIA card 6) power on computer 7) login 8) plugin PCMCIA card With this sequence, I was able to get wifi working. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/956845 Title: Inserting LinkSys PCMCIA Wireless Hangs Xubuntu 12.04 Beta To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/956845/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs