Comment 4 for bug 370046

I have located the release notes for the propriety Broadcom wireless driver at http://www.broadcom.com/docs/linux_sta/README.txt

It sounds to me that this driver cannot be configured with the appropriate regulatory domain and therefor it cannot use these channels. From the document:-

"Why aren't channels 12 & 13 supported? The driver only supports the default
locale setting wich is ROW (Rest Of World) which does not include channels 12 or 13."

I expect this is something that will have to be taken up with the laptop supplier, in my case I will have to take this up directly with Dell.