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Thread: troubleshooting wireless connection problem broadcom bcm4311

  1. #1
    Join Date
    Mar 2013
    Beans
    5

    Question troubleshooting wireless connection problem broadcom bcm4311

    Hi i am new to ubuntu and computers in general. I am having trouble getting ubuntu to recognize my wireless card. Any help is appreciated.

    1. The computer i am using is a dell inspiron 1520 with a core2duo. I found some documentation on the web detailing problems recognizing my wireless card which is the Broadcom BCM4311. There seems to be several different "fixes" but it seems to be a common issue. I found some info that gives methods for installing different drivers but it's over my head. http://ubuntuforums.org/showthread.php?t=1745437
    2. 4GB Ram
    3. Brodcom BCM4311 wireless card
    4. Dual boot HD install using wubi
    5. 32k

    Code:
    mike@ubuntu:~$ sudo lshw -C network 
    Code:
    [sudo] password for mike: 
    Sorry, try again. 
    [sudo] password for mike: 
    PCI (sysfs)   
      *-network                
           description: Network controller 
           product: BCM4311 802.11b/g WLAN 
           vendor: Broadcom Corporation 
           physical id: 0 
           bus info: pci@0000:0c: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:17 memory:fe8fc000-fe8fffff 
      *-network 
           description: Ethernet interface 
           product: BCM4401-B0 100Base-TX 
           vendor: Broadcom Corporation 
           physical id: 0 
           bus info: pci@0000:03:00.0 
           logical name: eth0 
           version: 02 
           serial: 00:1c:23:8b:d7:22 
           size: 10Mbit/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=half latency=64 link=no multicast=yes port=twisted pair speed=10Mbit/s 
           resources: irq:17 memory:fe5fe000-fe5fffff 
    mike@ubuntu:~$ 
    mike@ubuntu:~$ nm-tool 
    
    
    NetworkManager Tool 
    
    
    State: disconnected 
    
    
    - Device: eth0 ----------------------------------------------------------------- 
      Type:              Wired 
      Driver:            b44 
      State:             unavailable 
      Default:           no 
      HW Address:        00:1C:23:8B:D7:22 
    
    
      Capabilities: 
        Carrier Detect:  yes 
    
    
      Wired Properties 
        Carrier:         off


  2. #2
    Join Date
    Nov 2004
    Location
    Maine
    Beans
    1,339
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: troubleshooting wireless connection problem broadcom bcm4311

    Hello prodigalson7777 and welcome to Ubuntu and Linux,

    Sorry your having problems, Broadcom cards can be a little tricky. but the good news is once they are setup they work well.

    here is a page that should get you going if you follow it.

    remember if you installed the STA driver you'll have to uninstall it first.
    Dave
    Registered Linux User #462608
    ubuntu 14.04 LTS ; xubuntu 14.04 LTS

  3. #3
    Join Date
    Mar 2013
    Beans
    5

    Re: troubleshooting wireless connection problem broadcom bcm4311

    Hello Dave,

    Thank you for getting back to me. I have made some progress in identifying my problems. I do not have access to an ethernet connection so i cannot install the broadcom drivers via a wired connection. I am running Ubuntu under a dual boot with Windows which has a wireless conncection. So, I have decided the best idea is to create a directory and download the appropriate drivers into the folder and then install them in Ubuntu via command line. Being that i am a green blooded NOOB I am not sure where i would go to download the appropriate drivers for the broadcom bcm4311. Any help would be appreciated.

    Thanks Again

  4. #4
    Join Date
    Feb 2008
    Location
    Texas
    Beans
    14,652
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: troubleshooting wireless connection problem broadcom bcm4311

    Hi, Download the b43 zip file to a flash drive then drag and drop the file to your ubuntu desktop. Right-click it and select Extract Here. Open a terminal and do:
    Code:
    sudo mkdir /lib/firmware/b43
    sudo cp Desktop/b43/* /lib/firmware/b43
    sudo rmmod -f b43
    sudo rmmod -f ssb
    sudo modprobe b43
    Thanks
    b43.zip

  5. #5
    Join Date
    Oct 2009
    Location
    Reykjavk, sland
    Beans
    9,286
    Distro
    Lubuntu 14.04 Trusty Tahr

    Re: troubleshooting wireless connection problem broadcom bcm4311

    Moved to Networking and Wireless.
    About problems due to upgrading
    Bringing old hardware back to life.
    Please visit Quick Links -> Unanswered Posts

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