Wireless will not detect networks

I’ve read through the stickied thread about troubleshooting my wireless and I’ve made it to step IV ‘Making a connection.’
I installed the firmware that my BCM4306 required, then tried ‘sudo usr/sbin/iwlist scan’ and the result I get is:

lo Interface doesn’t support scanning.

eth0 Interface doesn’t support scanning.

wmaster0 Interface doesn’t support scanning.

wlan0 Interface doesn’t support scanning : Network is down

Any ideas?

On 02/22/2010 04:36 PM, jwolbach wrote:
>
> I’ve read through the stickied thread about troubleshooting my wireless
> and I’ve made it to step IV ‘Making a connection.’
> I installed the firmware that my BCM4306 required, then tried ‘sudo
> usr/sbin/iwlist scan’ and the result I get is:
>
>> lo Interface doesn’t support scanning.
>>
>> eth0 Interface doesn’t support scanning.
>>
>> wmaster0 Interface doesn’t support scanning.
>>
>> wlan0 Interface doesn’t support scanning : Network is down
>
> Any ideas?

Duh. Bring your network up! You didn’t say how you are connecting, but your
wireless switch is probably off.

You can try:

ip link set wlan0 up

But if you are relying on NetworkManager to have configured the card I don’t think it will have. You’ll have to look at the output of:

ip addr show wlan0

The card should report an address and should report UP like this:

craken:~ # ip addr show wlan0
4: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 00:14:a5:13:ea:f4 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.19/24 brd 192.168.1.255 scope host wlan0


I had a similar problem and had to resort to manual scripting. I only had a dataset of one so I don’t know whether the problems I had were endemic or just confined to my cardset. Check my posting here: Broadcom reports “not ready” - openSUSE Forums

Good luck