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Thread: Wired ethernet not getting detected

  1. #41
    Join Date
    Jul 2010
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    12

    Re: Wired ethernet not getting detected

    Quote Originally Posted by Rajeshtl View Post
    first time when I ran 'sudo ifconfig wlan0 up' it asked for my password and when I typed in it did nothing,then I entered the second one and it gave me this results

    lo Interface doesnt support Scanning
    eth0 interface doesnt support scanning
    wlan0 interface doesnt support scanning: network is down...

    Network is not down...I have a desktop which is working fine.

    THen I typed in the same commands again
    for the first one this time I got SIOCSIFFLAGS: Unknown error 132
    second one gave the same results...

    Appreciate your help...

    I just did 'rfkill list'
    these are the results:
    dell-wifi:Wireless LAN
    Soft Blocked : no
    Hard Blocked : no
    Phy0:wireless LAN
    Soft Blocked : no
    hArd blocked : no

  2. #42
    Join Date
    Aug 2007
    Location
    Paris
    Beans
    5,538
    Distro
    Ubuntu 11.04 Natty Narwhal

    Re: Wired ethernet not getting detected

    That's strange. We may need to try a different driver. The one you were using was called 'b43'; let's try the STA driver instead, which is called 'wl'. To install the STA driver, type:
    Code:
    sudo apt-get update
    sudo apt-get install --fix-missing bcmwl-kernel-source bcmwl-modaliases
    Alternatively, you should be able to install the driver graphically using the utility at System>Administration>Hardware Drivers.

    You will need to be connected to the Internet for this to work, so please make sure you can browse websites before trying to install the STA driver.

    Once the driver is installed, reboot. If the wireless still doesn't work, try typing "sudo ifconfig eth1 up". If it still doesn't work even after that, please post:
    Code:
    ifconfig
    iwconfig
    lshw -C Network
    dmesg | grep -e b43 -e wl -e eth
    Sorry this is turning out to be difficult, but thanks for your patience.

  3. #43
    Join Date
    Jul 2010
    Beans
    12

    Re: Wired ethernet not getting detected

    Quote Originally Posted by pytheas22 View Post
    That's strange. We may need to try a different driver. The one you were using was called 'b43'; let's try the STA driver instead, which is called 'wl'. To install the STA driver, type:
    Code:
    sudo apt-get update
    sudo apt-get install --fix-missing bcmwl-kernel-source bcmwl-modaliases
    Alternatively, you should be able to install the driver graphically using the utility at System>Administration>Hardware Drivers.

    You will need to be connected to the Internet for this to work, so please make sure you can browse websites before trying to install the STA driver.

    Once the driver is installed, reboot. If the wireless still doesn't work, try typing "sudo ifconfig eth1 up". If it still doesn't work even after that, please post:
    Code:
    ifconfig
    iwconfig
    lshw -C Network
    dmesg | grep -e b43 -e wl -e eth
    Sorry this is turning out to be difficult, but thanks for your patience.
    **** My Wired Network is not working.
    iwconfig
    lo no wireless extensions.
    eth0 no wireless extensions.
    wlan0 IEEE 802.11bg ESSIDff/any
    Mode:Managed Access Point: Not-Associated Tx-Power=0 dBm
    Retry long limit:7 RTS thrff Fragment thrff
    Power Managementff

    ifconfig
    lo Link encap:Local Loopback
    inet addr:127.0.0.1 Mask:255.0.0.0
    inet6 addr: ::1/128 Scope:Host
    UP LOOPBACK RUNNING MTU:16436 Metric:1
    RX packets:12 errors:0 dropped:0 overruns:0 frame:0
    TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 txqueuelen:0
    RX bytes:720 (720.0 B) TX bytes:720 (720.0 B)
    lshw -C Network
    WARNING: you should run this program as super-user.
    *-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: bus_master cap_list
    configuration: driver=b43-pci-bridge latency=0
    resources: irq:17 memory:efdfc000-efdfffff
    *-network DISABLED
    description: Ethernet interface
    product: BCM4401-B0 100Base-TX
    vendor: Broadcom Corporation
    physical id: 0
    bus info: pci@0000:02:00.0
    logical name: eth0
    version: 02
    serial: 00:15:c5:70:71:20
    width: 32 bits
    clock: 33MHz
    capabilities: bus_master cap_list ethernet physical
    configuration: broadcast=yes driver=b44 driverversion=2.0 latency=64 multicast=yes
    resources: irq:17 memory:ef9fe000-ef9fffff
    *-network DISABLED
    description: Wireless interface
    physical id: 1
    logical name: wlan0
    serial: 00:18:f3:d8:2f:2a
    capabilities: ethernet physical wireless
    configuration: broadcast=yes multicast=yes wireless=IEEE 802.11bg
    dmesg | grep -e b43 wl -e eth
    grep: wl: No such file or directory

  4. #44
    Join Date
    Aug 2007
    Location
    Paris
    Beans
    5,538
    Distro
    Ubuntu 11.04 Natty Narwhal

    Re: Wired ethernet not getting detected

    Do you have an Ubuntu installation CD? If so, you can install the driver from there. First you need to put your CD in the drive, then go to System>Administration>Software Sources and, under the "Ubuntu Software" tab, enable the use of your CD as a repository. After that, try running again:
    Code:
    sudo apt-get install bcmwl-kernel-source bcmwl-modaliases
    If this doesn't work, you may also be able to get your wired Internet working by typing:
    Code:
    sudo ifconfig eth0 up
    sudo dhclient eth0
    After typing those commands, try opening Web pages. If that works, you can download the STA driver using:

    Code:
    sudo apt-get install bcmwl-kernel-source bcmwl-modaliases

  5. #45
    Join Date
    Jul 2010
    Beans
    12

    Re: Wired ethernet not getting detected

    Quote Originally Posted by pytheas22 View Post
    Do you have an Ubuntu installation CD? If so, you can install the driver from there. First you need to put your CD in the drive, then go to System>Administration>Software Sources and, under the "Ubuntu Software" tab, enable the use of your CD as a repository. After that, try running again:
    Code:
    sudo apt-get install bcmwl-kernel-source bcmwl-modaliases
    If this doesn't work, you may also be able to get your wired Internet working by typing:
    Code:
    sudo ifconfig eth0 up
    sudo dhclient eth0
    After typing those commands, try opening Web pages. If that works, you can download the STA driver using:

    Code:
    sudo apt-get install bcmwl-kernel-source bcmwl-modaliases

    selected CD ROM as repository,this is what I got...
    sudo apt-get install bcmwl-kernel-source bcmwl-modaliases
    Reading package lists... Done
    Building dependency tree
    Reading state information... Done
    bcmwl-kernel-source is already the newest version.
    bcmwl-modaliases is already the newest version.
    0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
    1 not fully installed or removed.
    After this operation, 0B of additional disk space will be used.
    Setting up bcmwl-kernel-source (5.60.48.36+bdcom-0ubuntu3) ...
    Removing old bcmwl-5.60.48.36+bdcom DKMS files...
    ------------------------------
    Deleting module version: 5.60.48.36+bdcom
    completely from the DKMS tree.
    ------------------------------
    Done.
    Loading new bcmwl-5.60.48.36+bdcom DKMS files...
    First Installation: checking all kernels...
    Building only for 2.6.32-21-generic
    Building for architecture i686
    Building initial module for 2.6.32-21-generic
    /usr/sbin/dkms: line 35: patch: command not found
    Error! Application of patch 0001-MODULE_LICENSE.patch failed.
    Check /var/lib/dkms/bcmwl/5.60.48.36+bdcom/build/ for more information.
    dpkg: error processing bcmwl-kernel-source (--configure):
    subprocess installed post-installation script returned error exit status 6
    Errors were encountered while processing:
    bcmwl-kernel-source
    E: Sub-process /usr/bin/dpkg returned an error code (1)

  6. #46
    Join Date
    Jul 2010
    Beans
    12

    Re: Wired ethernet not getting detected

    Quote Originally Posted by Rajeshtl View Post
    selected CD ROM as repository,this is what I got...
    sudo apt-get install bcmwl-kernel-source bcmwl-modaliases
    Reading package lists... Done
    Building dependency tree
    Reading state information... Done
    bcmwl-kernel-source is already the newest version.
    bcmwl-modaliases is already the newest version.
    0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
    1 not fully installed or removed.
    After this operation, 0B of additional disk space will be used.
    Setting up bcmwl-kernel-source (5.60.48.36+bdcom-0ubuntu3) ...
    Removing old bcmwl-5.60.48.36+bdcom DKMS files...
    ------------------------------
    Deleting module version: 5.60.48.36+bdcom
    completely from the DKMS tree.
    ------------------------------
    Done.
    Loading new bcmwl-5.60.48.36+bdcom DKMS files...
    First Installation: checking all kernels...
    Building only for 2.6.32-21-generic
    Building for architecture i686
    Building initial module for 2.6.32-21-generic
    /usr/sbin/dkms: line 35: patch: command not found
    Error! Application of patch 0001-MODULE_LICENSE.patch failed.
    Check /var/lib/dkms/bcmwl/5.60.48.36+bdcom/build/ for more information.
    dpkg: error processing bcmwl-kernel-source (--configure):
    subprocess installed post-installation script returned error exit status 6
    Errors were encountered while processing:
    bcmwl-kernel-source
    E: Sub-process /usr/bin/dpkg returned an error code (1)

    SUDO IFCONFIG ETH0 UP

    sudo dhclient eth0
    Internet Systems Consortium DHCP Client V3.1.3
    Copyright 2004-2009 Internet Systems Consortium.
    All rights reserved.
    For info, please visit https://www.isc.org/software/dhcp/
    Listening on LPF/eth0/00:15:c5:70:71:20
    Sending on LPF/eth0/00:15:c5:70:71:20
    Sending on Socket/fallback
    DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 8
    DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 15
    DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 14
    DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 21
    DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3
    No DHCPOFFERS received.
    No working leases in persistent database - sleeping.

  7. #47
    Join Date
    Aug 2007
    Location
    Paris
    Beans
    5,538
    Distro
    Ubuntu 11.04 Natty Narwhal

    Re: Wired ethernet not getting detected

    It looks like it didn't work on the first try because the package 'patch' was not installed, which it apparently needs. Please make sure your Ubuntu CD is still enabled to be used as a repository, then try:
    Code:
    sudo apt-get install build-essential patch
    sudo apt-get install --reinstall bcmwl-kernel-source bcmwl-modaliases

  8. #48
    Join Date
    Jul 2010
    Beans
    12

    Re: Wired ethernet not getting detected

    Quote Originally Posted by pytheas22 View Post
    It looks like it didn't work on the first try because the package 'patch' was not installed, which it apparently needs. Please make sure your Ubuntu CD is still enabled to be used as a repository, then try:
    Code:
    sudo apt-get install build-essential patch
    sudo apt-get install --reinstall bcmwl-kernel-source bcmwl-modaliases
    Sure I will try it tommorow and let u know..

  9. #49
    Join Date
    Mar 2009
    Beans
    33

    Re: Wired ethernet not getting detected

    Hi rbisawa, on Pytheas post hes asked to enter:

    sudo apt-get update

    My problem is that I dont have access to any network since my wired and wireless cards are not recognized.

    How did you do?

  10. #50
    Join Date
    Aug 2007
    Location
    Paris
    Beans
    5,538
    Distro
    Ubuntu 11.04 Natty Narwhal

    Re: Wired ethernet not getting detected

    julio prada: we can find a way to activate your wireless even if you don't have wired Internet access, but first let's make sure your situation is actually the same as that of the other posters in this thread. Please post the output of these commands so we know which hardware you have, etc.:
    Code:
    lspci -nn
    lshw -C Network
    dmesg | grep wlan
    If you have different hardware and a different problem, I'll ask you please to start a new thread so that this one doesn't become too convoluted, and I'll help you in your new thread.

    Also, keep in mind that you can save the output of the commands to a text file, then use a USB disk or CD to transfer the file to a computer with Internet access, so that you can copy the output to this forum.

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