[CentOS] Centos 6.5 Unable to start wireless

Sat Dec 28 15:40:47 UTC 2013
antonio <antonio.montagnani at gmail.com>

Made a minimal install, then added Gnome, etc, etc, now I have a full 
running system but:

on the laptop I have a Broadcom BMC4311 that is not seen from system 
even if driver seems (b43) to be loaded
If I connect an USB dongle with RLT8187 (high power dongle) I see also 
Broadcom BCM 4311 (high power dongle is working on another system):I 
guess tha USB port power is too low to make dongle work

In any case I get the message that wireless is disabled.
Any comment?

Antonio M
Skype: amontag52

Linux Fedora F20 (Heisenbug) on Acer 5720