Re-enabling wireless

[parillo]

Hi,

yesterday I disabled the wireless network in Kde via the network manager:



As you can see in the window, "Abilita rete senza fili" (meaning "Enable wireless") is now unchecked.

The problem is that since then I've not been able to re-enable it. The box is there, but I can't check it again.

This is the output for an ifdown-ifup on wlan0:

root@brainbox:/home/giovanni# ifdown wlan0 && ifup wlan0
ifdown: interface wlan0 not configured
Ignoring unknown interface wlan0=wlan0.

And the output for iwconfig:

root@brainbox:/home/giovanni# iwconfig
lo no wireless extensions.

eth0 no wireless extensions.

wlan0 IEEE 802.11abgn ESSID: off/any
Mode: Managed Access Point: Not-Associated Tx-Power= off
Retry long limit: 7 RTS thr: off Fragment thr: off
Encryption key: off
Power Management: off

ppp0 no wireless extensions.

Please help

Giovanni

[james147]

Try unchecking the "enable networks" button and rechecking it (I have found this to help a few times). Also make sure any hardware switches aren't disabled and try running

[COLOR=#222222]rfkill list[/COLOR]

in a console and see what it says.

[parillo]

Tried to check and uncheck networks, it didn't work. But thanks .

The output:

giovanni@brainbox:~$ rfkill list
0: sony-wifi: Wireless LAN
Soft blocked: yes
Hard blocked: no
1: sony-bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
2: phy0: Wireless LAN
Soft blocked: yes
Hard blocked: yes
5: hci0: Bluetooth
Soft blocked: no
Hard blocked: no

[GreyGeek]

IF your PC does not have a mechanical switch that can turn the wifi on or off, or a keyboard combo that does the same (mine is Fn+F3), then open a Konsole and see if:
sudo ifconfig wlan0 up

enables it or allows you to tick the "Enable Wireless" checkbox.

[parillo]

Thx GreyGeek. After:

#giovanni@brainbox:~$ sudo ifconfig wlan0 up
#SIOCSIFFLAGS: Operation not possible due to RF-kill

I googled rf-kill and found this -> http://forum.ubuntu-it.org/viewtopic.php?t=406682

# sudo rfkill unblock all

solved the problem for me

I hope I didn't unblock something I should not, though.

Giovanni

[GreyGeek]

According to your "rfkill list" output you removed the softblock on

2: phy0: Wireless LAN
Soft blocked: yes
Hard blocked: yes

but it shows that you still have the mechanical swtich set in the off position. If you don't use Bluetooth then no harm.