Wireless connection problem

Asked by David Brown on 2012-02-20

Hi I am having trouble connecting to wireless networks on my laptop. I recently install ubuntu 11.10 and after a day or so reading online support things I managed to get my wireless working. However the other day I shut down my computer and when I turned it back on the wireless was not working, having browsed for a few days and tried some solutions I still can't get it to work.

I am using a dell vostro 1000 laptop with a broadcom BCM4311 inbuilt wireless card, any help or a point in the right direction would really be appreciated.

Thank you.

Question information

Language:
English Edit question
Status:
Answered
For:
Ubuntu gnome-nettool Edit question
Assignee:
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Last query:
2012-02-20
Last reply:
2012-02-21
David Brown (rancor70) said : #2

Thanks for the quick response but I have installed these drivers as the page says to and my wireless is still not working.

Can you give the output of:

sudo lshw -C network; lsb_release -a; uname -a; sudo rfkill list; dmesg | grep -i firm

Thanks

David Brown (rancor70) said : #4

dave@Godzilla:~$ sudo lshw -C network
[sudo] password for dave:
  *-network
       description: Network controller
       product: BCM4311 802.11b/g WLAN
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:05:00.0
       version: 01
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list
       configuration: driver=b43-pci-bridge latency=0
       resources: irq:18 memory:c0200000-c0203fff
  *-network
       description: Ethernet interface
       product: BCM4401-B0 100Base-TX
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:08:00.0
       logical name: eth1
       version: 02
       serial: 00:1d:09:b7:9d:77
       size: 100Mbit/s
       capacity: 100Mbit/s
       width: 32 bits
       clock: 33MHz
       capabilities: pm bus_master cap_list ethernet physical mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=b44 driverversion=2.0 duplex=full ip=192.168.1.68 latency=64 link=yes multicast=yes port=twisted pair speed=100Mbit/s
       resources: irq:21 memory:c0300000-c0301fff
dave@Godzilla:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 11.10
Release: 11.10
Codename: oneiric
dave@Godzilla:~$ uname -a
Linux Godzilla 3.0.0-16-generic #28-Ubuntu SMP Fri Jan 27 17:50:54 UTC 2012 i686 athlon i386 GNU/Linux
dave@Godzilla:~$ sudo rfkill list
0: dell-wifi: Wireless LAN
 Soft blocked: no
 Hard blocked: no
dave@Godzilla:~$ dmesg | grep -i firm

Thanks again for the help.
The final command didn't give a readout.

ok and the output of:

dpkg -l | grep bcmwl

Thanks

David Brown (rancor70) said : #6

dave@Godzilla:~$ dpkg -l | grep bcmwl
ii bcmwl-kernel-source 5.100.82.38+bdcom-0ubuntu4 Broadcom 802.11 Linux STA wireless driver source

Ok then run:

sudo modprobe -r b43-pci-bridge ssb wl; sleep 10; sudo modprobe wl

David Brown (rancor70) said : #8

dave@Godzilla:~$ sudo modprobe -r b43-pci-bridge ssb wl
[sudo] password for dave:
WARNING: All config files need .conf: /etc/modprobe.d/blacklist, it will be ignored in a future release.
FATAL: Module b43_pci_bridge not found.
dave@Godzilla:~$ sleep 10
dave@Godzilla:~$ sudo modprobe wl
WARNING: All config files need .conf: /etc/modprobe.d/blacklist, it will be ignored in a future release.
WARNING: All config files need .conf: /etc/modprobe.d/blacklist, it will be ignored in a future release.
WARNING: All config files need .conf: /etc/modprobe.d/blacklist, it will be ignored in a future release.
WARNING: All config files need .conf: /etc/modprobe.d/blacklist, it will be ignored in a future release.

Not sure if this was what was supposed to be returned but after the sudo modprobe wl the network icon in the top right seemed to refresh but wireless still doesnt seem to be working.

then run:

sudo mv /etc/modprobe.d/blacklist /etc/modprobe.d/blacklist_dave.conf

Will clear up those warnings

David Brown (rancor70) said : #10

OK so I ran sudo mv /etc/modprobe.d/blacklist /etc/modprobe.d/blacklist_dave.conf and then re-ran sudo modprobe -r b43-pci-bridge ssb wl; sleep 10; sudo modprobe wl

dave@Godzilla:~$ sudo mv /etc/modprobe.d/blacklist /etc/modprobe.d/blacklist_dave.conf
[sudo] password for dave:
dave@Godzilla:~$ sudo modprobe -r b43-pci-bridge ssb wl
FATAL: Module b43_pci_bridge not found.
dave@Godzilla:~$ sudo modprobe wl
dave@Godzilla:~$ sudo modprobe -r b43-pci-bridge ssb wl
FATAL: Module b43_pci_bridge not found.
dave@Godzilla:~$ sleep 10
dave@Godzilla:~$ sudo modprobe wl

Sad to say that the wireless is still not working

Please copy-paste the following 3 commands into the Terminal.

sudo apt-get update

sudo apt-get remove bcmwl-kernel-source

sudo apt-get install firmware-b43-installer b43-fwcutter

Then REBOOT your PC and retest wireless.

Source: https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/732677

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