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Thread: Lost network access

  1. #1
    Join Date
    Feb 2013
    Beans
    2

    Question Lost network access

    I have ubuntu 12.10, which until today was working correctly. In particular, I could use Firefox to access the Internet (and my mail) through my wireless router.

    Today I received a notice advising me that additional software was available. I chose to download the software. At the completion of the download I was asked to reboot the computer, which I did. When the reboot finished, I received the message "Network Disconnected". and I can no longer access the Internet with Firefox.

    When I select the "Network" icon, the option "Wireless" has disappeared, I and I can find no way to reconnect via my wireless router.

    Can anyone help? Thank you very much.

    TCNM

  2. #2
    Join Date
    Mar 2006
    Location
    Rumplestiltskin, Cal.
    Beans
    Hidden!
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Lost network access

    Please explain what you did to

    1 - Download

    2 - Install

    the additional software.

    Let us begin there.
    AMD Athlon II X4 620, 4gig ddr2-800, m/b MSI K9N6PGM2, 1T SATA, EVGA 9500GT, Brother MFC-240C prntr, LG DVD-rom GSA-H55N

  3. #3
    Join Date
    Feb 2013
    Beans
    2

    Re: Lost network access

    I clicked "Download" to download the new software.

    When the download was complete, I clicked "Reboot now" to reboot the computer

  4. #4
    Join Date
    Mar 2006
    Location
    Rumplestiltskin, Cal.
    Beans
    Hidden!
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Lost network access

    try:

    sudo apt-get update
    sudo apt-get install aptitude

    from the terminal type

    sudo aptitude install -f

    the

    -f

    will try to resolve problems. After it runs, if you still are w/o network, re-boot. Let me know. If this solves it, please mark this thread as solved under Thread Tools near top of posting window.
    AMD Athlon II X4 620, 4gig ddr2-800, m/b MSI K9N6PGM2, 1T SATA, EVGA 9500GT, Brother MFC-240C prntr, LG DVD-rom GSA-H55N

  5. #5
    Join Date
    Mar 2011
    Location
    19th Hole
    Beans
    Hidden!
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Lost network access

    aptitude -f is not such a good idea right away-- at least, not until we do some tests. Also, aptitude is redundant. Let's try to stick with apt to avoid confusion and system bloat.

    @OP

    We need much more info about your system. Otherwise, fumbling around in the dark. Were you describing a system update? If your wireless stopped working after an update, it is possible that the update loaded conflicting wireless modules that are now competing for your wireless chip. Please open a terminal using <Ctrl>+<Alt>+<t> and do:
    Code:
    sudo lshw -C network
    Code:
    sudo lspci -vk | grep -iA13 net
    Code:
    ifconfig
    Code:
    iwconfig
    Code:
    cat /etc/modules
    Code:
    grep blacklist /etc/modprobe.d/blacklist.conf
    The output will be considerable, so for easier reading, highlight each set of outputs and wrap it in a "code" box just like I have by using the hash (#) character at the top of the posting box. Please give each output its own hash tags.

  6. #6
    Join Date
    Mar 2006
    Location
    Rumplestiltskin, Cal.
    Beans
    Hidden!
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Lost network access

    Yea, follow the Duckster.
    AMD Athlon II X4 620, 4gig ddr2-800, m/b MSI K9N6PGM2, 1T SATA, EVGA 9500GT, Brother MFC-240C prntr, LG DVD-rom GSA-H55N

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