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Thread: Upgrading DD-WRT Firmware - Clear settings or not?

  1. #1
    William R. Walsh
    Guest

    Upgrading DD-WRT Firmware - Clear settings or not?

    Hello all...

    I have been using and recommending DD-WRT to others for a long time
    now, starting with v23 SP2. I've used it primarily on Buffalo
    hardware, such as the WHR-G54S, WHR-G54-HP, and WHR-G125.

    When a new release of the firmware came out, I upgraded the firmware
    in the devices I have around after a waiting period, and most of them
    have been trouble free. (My main device, a Buffalo WHR-G54S, that
    began life running DD-WRT v23 SP2, has yet to ever be reset other than
    by a power outage.) Some, however, have not worked properly after the
    upgrade, and have caused reliability issues for the rest of the
    network to which they are attached. In these cases, hard resets and
    reconfiguration to the original settings fixed the problems.

    I looked around the DD-WRT site and did not find anything in
    particular that suggested a reset to factory defaults had to be done
    after each firmware upgrade.

    So...I'm looking to develop a consensus of answers. Is a reset to
    defaults required, recommended or completely unnecessary when
    upgrading DD-WRT firmware on a configured router that was running an
    earlier release?

    William

  2. #2
    LR
    Guest

    Re: Upgrading DD-WRT Firmware - Clear settings or not?

    William R. Walsh wrote:
    > Hello all...
    >
    > I have been using and recommending DD-WRT to others for a long time
    > now, starting with v23 SP2. I've used it primarily on Buffalo
    > hardware, such as the WHR-G54S, WHR-G54-HP, and WHR-G125.
    >
    > When a new release of the firmware came out, I upgraded the firmware
    > in the devices I have around after a waiting period, and most of them
    > have been trouble free. (My main device, a Buffalo WHR-G54S, that
    > began life running DD-WRT v23 SP2, has yet to ever be reset other than
    > by a power outage.) Some, however, have not worked properly after the
    > upgrade, and have caused reliability issues for the rest of the
    > network to which they are attached. In these cases, hard resets and
    > reconfiguration to the original settings fixed the problems.
    >
    > I looked around the DD-WRT site and did not find anything in
    > particular that suggested a reset to factory defaults had to be done
    > after each firmware upgrade.
    >
    > So...I'm looking to develop a consensus of answers. Is a reset to
    > defaults required, recommended or completely unnecessary when
    > upgrading DD-WRT firmware on a configured router that was running an
    > earlier release?
    >
    > William

    "If DD-WRT is already installed on your router, you can simply upgrade
    to a new version via the web interface or TFTP. However, it is highly
    recommended that you restore the router to defaults using the reset
    button before and after flash. Never restore old backups from previous
    versions! Skipping these steps could lead to a bricked device! "
    <http://www.dd-wrt.com/wiki/index.php/Installation#Upgrading_to_a_newer_version_of_DD-WRT>

  3. #3
    William R. Walsh
    Guest

    Re: Upgrading DD-WRT Firmware - Clear settings or not?

    Hi!

    > "If DD-WRT is already installed on your router, you can simply upgrade
    > to a new version via the web interface or TFTP. However, it is highly
    > recommended that you restore the router to defaults using the reset
    > button before and after flash."


    Thanks for the information. I am not sure how I managed to miss that.

    William

  4. #4
    Jeff Liebermann
    Guest

    Re: Upgrading DD-WRT Firmware - Clear settings or not?

    On Thu, 9 Oct 2008 09:35:03 -0700 (PDT), "William R. Walsh"
    <wm_walsh@hotmail.com> wrote:

    >Thanks for the information. I am not sure how I managed to miss that.
    >William


    I've had good luck retaining the settings between firmware upgrades
    between the various v24 versions. However, going from v23 to v24
    required a grand reset, and manually punching in all the settings. At
    one point, the cfg file went from human readable to binary gibberish
    (to save space), which is what caused most of the problems. If you're
    not sure, print screen the old settings, reset, and re-enter.
    --
    Jeff Liebermann jeffl@cruzio.com
    150 Felker St #D http://www.LearnByDestroying.com
    Santa Cruz CA 95060 http://802.11junk.com
    Skype: JeffLiebermann AE6KS 831-336-2558

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