I just upgraded from FC 11 to 12 and my wifi is gone. I am using a Broadcom chipset and the b43 module is loaded.
It's hard for me to copy and paste the results I've been getting because I have no connectivity on that computer. Anyway, I get the following results from dmesg:
Broadcom 43xx driver loaded
udev: renamed network interface wlan0 to wlan1
ADDRCONF(NETDEV_UP): wlan1: link is not ready
NetworkManager doesn't show my wifi AP. Also, I have tried using system-config but I'm not able to manually set the essid.