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Thread: Lost Notebook WiFi Connection

  1. #1
    Join Date
    Nov 2005
    Location
    Sydney, Australia
    Beans
    216
    Distro
    Ubuntu Studio 12.04 Precise Pangolin

    Lost Notebook WiFi Connection

    Recently installed Bigpond ADSL with a Thomson wifi router. Connected desktop OK. Connected laptop OK. Ran for 3 days OK. Then I connected the laptop via Ethernet. Now I cannot get back to wifi. Desktop still OK. Keep getting Authorization screen for WPA but Router does not like this.

    As the wife uses laptop, I was forced to go back to Windows which connects without any problems.

    Any ideas welcome.
    Just think how boring life would be without Ubuntu

  2. #2
    Join Date
    Oct 2009
    Location
    Tucson, AZ
    Beans
    782
    Distro
    Ubuntu 10.10 Maverick Meerkat

    Re: Lost Notebook WiFi Connection

    Hi bayvista. Happy New Year!

    It worked before you plugged into Ethernet but not after? That's strange. Did you try and reboot? At any rate, I'm going to have you run a few diagnostics so we can get an idea of what might be going on.

    Go to Applications > Accessories > Terminal, and type each of these commands in the black box, pressing Enter after each one:
    Code:
    lspci -vnn
    ifconfig -a
    nm-tool
    sudo iwconfig
    After that last one you will be asked to enter your password. Just type it in and press Enter, even though it doesn't show stars or dots.

    Once you have all that, highlight it, and copy and paste it into a reply to this thread. Hopefully we can figure out what's going on.

  3. #3
    Join Date
    Nov 2005
    Location
    Sydney, Australia
    Beans
    216
    Distro
    Ubuntu Studio 12.04 Precise Pangolin

    Re: Lost Notebook WiFi Connection

    Thanks, I have attached the output from those commands
    Attached Files Attached Files
    Last edited by bayvista; January 3rd, 2011 at 11:21 PM. Reason: Attachment missing
    Just think how boring life would be without Ubuntu

  4. #4
    Join Date
    Oct 2009
    Location
    Tucson, AZ
    Beans
    782
    Distro
    Ubuntu 10.10 Maverick Meerkat

    Re: Lost Notebook WiFi Connection

    I would try replacing NetworkManager with wicd and see if that works better. NetworkManager and wicd are both programs that run the network icon on your desktop. Many people find that wicd works better.

    To do so, open a terminal and run:
    Code:
    sudo apt-get update
    sudo apt-get purge network-manager
    sudo apt-get install wicd
    Make sure you have a working wired connection when you do that. You might need to restart to fully remove NetworkManager and let wicd take over.

  5. #5
    Join Date
    Nov 2005
    Location
    Sydney, Australia
    Beans
    216
    Distro
    Ubuntu Studio 12.04 Precise Pangolin

    Re: Lost Notebook WiFi Connection

    Hi Patches
    Well, that worked! My notebook now connects via wifi without any problems. Thank you very much.
    I would love to know why Network Manager couldn't connect.
    Just think how boring life would be without Ubuntu

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