This is a continuation of my previous thread: "Broadcom Wifi Problem" Following a post from "James A. Peltier", who said: You can use the rpmforge version or compile it yourself. I've used this one with success using the details described earlier. http://www.broadcom.com/support/802.11/linux_sta.php I did however have to patch it with http://www.broadcom.com/docs/linux_sta/5_100_82_38.patch the driver built and installed fine. In fact, I'm using it on my laptop as we speak. On my CentOS 6, with BCM4311 802.11b/g. I installed: hybrid-portsrc_x86_32-v5_100_82_38.tar.gz With NetworkManager shut off, I see: #lsmod | grep "b43\|ssb\|wl" wl 2635904 0 lib80211 4858 1 wl and I try to start with: ifup wlan0 I put debug in the script, following into nested scripts, and see that it ultimately fails because: ip -o link fails to return wlan0 . I rechecked the MAC address, which is correct. Also ifconfig and iwconfig do not see wlan0 . Also, the wlan0 light on the box doesn't turn from red to green. If, however, I reenable b43, the light does turn green. Also, on this dual boot box, the WinXP partition runs WLAN0 with no problem. Thanks for your suggestions. Mike.