Wireless not working on Ubuntu 13.10

Question

I just installed Ubuntu 13.10, but the wireless is not working and no wireless networks are showing:

Command: iwconfig
Outputs:

eth0 no wireless extensions.

eth1 IEEE 802.11abg EEID:off/any
     Mode:Managed Access Point: Not-Associated Tx-Power-19 dBm
     Retry long limit:7 RTS thr:off Fragment thr:off
     Power Management:off

lo   no wireless extensions.

The lspci -nn | grep 0280

Outputs:

02:00.0 Network controller [0280]: Broadcom Corporation BCM4313 802.11bgn Wireless
Network Adapter [14e4:4727] (rev 01)

Command lsmod | grep -e b43 -e brcm -e wl
Outputs:

wl          4207474         0
lib802011   14352           2 wl,lib80211_crypt_tkit
cfg80211    479757          1 wl

The following commands:
sudo -i
apt-get purge bcmwl-kernel-source
echo "blacklist b43" >> /etc/modprobe.d/blacklist.conf
exit

Output is:

youssef@YoussefSiblini:~$ sudo -i
[sudo] password for youssef: 
root@YoussefSiblini:~# apt-get purge bcmwl-kernel-source
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package bcmwl-kernel-source
root@YoussefSiblini:~# echo "blacklist b43" >> /etc/modprobe.d/blacklist.conf
root@YoussefSiblini:~# ^C
root@YoussefSiblini:~#

The out put of: lsmod | grep -e brcm -e wl and rfkill list all

youssef@YoussefSiblini:~$ lsmod | grep -e brcm -e wl
brcmsmac              562767  0 
cordic                 12574  1 brcmsmac
brcmutil               15618  1 brcmsmac
mac80211              596969  1 brcmsmac
cfg80211              479757  2 brcmsmac,mac80211
bcma                   46670  2 brcmsmac
youssef@YoussefSiblini:~$ rfkill list all
0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
1: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no

Many thanks in advance.

Youssef

Please edit your question to include: lsmod | grep -e b43 -e brcm -e wl. I do not think this is a duplicate at all. Thanks. — chili555, Mar 29 '14 at 13:16
That is master question for all broadcom wireless driver, the second answer covers all. However, there is a bug. bcmwl-kernel-source version 6.20 doesn't work above 12.04. Solution is given in the following question - Broadcom BCM4313 on 13.04 — Web-E, Mar 29 '14 at 13:25
@Web-E The master question has much conflicting and absolutely incorrect information. How is a user supposed to wade through 38 answers to find one that is correct? — chili555, Mar 29 '14 at 13:55

chili555 · Accepted Answer · 2014-03-29T16:02:32.050

1

Please open a terminal and do:

sudo -i
apt-get purge bcmwl-kernel-source
echo "blacklist b43" >>  /etc/modprobe.d/blacklist.conf
exit

Reboot and let us have your report.

Does your ethernet start up if you try:

sudo ifconfig eth0 down
sudo ifconfig eth0 up
ifconfig

Is ethtool installed?

sudo ethtool -s eth0 autoneg off speed 100

If the ethernet is now working:

sudo apt-get update
sudo apt-get purge bcmwl-kernel-source

If you still are unable to connect the ethernet, blacklist wl:

sudo -i
echo "blacklist wl" >>  /etc/modprobe.d/blacklist.conf
rm /etc/modprobe.d/blacklist-bcm43.conf
modprobe brcmsmac
exit

Reboot and let us hear your result.

edited Mar 29 '14 at 16:02

answered Mar 29 '14 at 13:49

chili555

60,188

Thanks, I did the following commands and added the output in my question. – user3178791 Mar 29 '14 at 13:59
More Details: when I click on the network icon it says: WI-FI networks disconnected and when I restart it says: Disconnected you are now offline netwrok. – user3178791 Mar 29 '14 at 14:14
What is your ethernet device? lspci -nn | grep 0200 – chili555 Mar 29 '14 at 14:17
01:00.2 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 0a) – user3178791 Mar 29 '14 at 14:21
One more thing I should have mentioned it earlier, my laptop monitor stopped working so I am using external monitor with hdmi connection – user3178791 Mar 29 '14 at 14:27
Please see my edit. – chili555 Mar 29 '14 at 14:30
Hi chili555 sorry for the delay, as I was suspicious of my internet cable I rushed to the shop and I got new one, the good news is that I am able to connect to the internet using the new cable, but still no luck with the wireless, I have tried the commands above and still no luck. – user3178791 Mar 29 '14 at 15:41
Please see my edit. – chili555 Mar 29 '14 at 16:01
Still no luck, no idea why it is not working I've tried every thing. – user3178791 Mar 29 '14 at 17:11
After the blacklists and loading brcmsmac, what does this say? lsmod | grep -e brcm -e b43 -e wl and also: rfkill list all Thanks. – chili555 Mar 29 '14 at 18:21
Please see the 'The out put of: lsmod | grep -e brcm -e wl and rfkill list all' section in my question. – user3178791 Mar 29 '14 at 18:53
After a fresh reboot so we have a clean slate, please run: dmesg > wifi.txt. Find the file wifi.txt in your user directory and paste it here. Give us the link in your reply: http://paste.ubuntu.com – chili555 Mar 29 '14 at 19:21
Here is the link: http://paste.ubuntu.com/7175815/ – user3178791 Mar 29 '14 at 19:35
Please update brcmsmac as here: http://ubuntuforums.org/showthread.php?t=2191126&page=2&p=12889620#post12889620 – chili555 Mar 29 '14 at 20:47
Can we clean comments? – Braiam Mar 29 '14 at 22:09
yep :) off course – user3178791 Mar 29 '14 at 22:29

Wireless not working on Ubuntu 13.10

1 Answers1