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    • Release Notes

    Home FortiWAN 4.5.8 Release Notes
    4.5.8
    5.2.1
    5.2.0
    5.1.2
    5.1.1
    4.5.10
    4.5.9
    4.5.8
    4.5.7
    4.5.6
    4.5.5
    4.5.4
    4.5.3
    4.5.2
    4.5.1
    4.5.0
    4.4.1
    4.3.1
    4.3.0
    4.2.7
    4.2.6
    4.2.5
    4.2.4
    4.2.3
    4.2.2
    4.2.1
    4.2.0
    4.1.3
    4.1.2

    Downgrading

    Downgrading

    In that case downgrade to previous releases of firmware (4.0.x, 4.1.x or 4.2.0 - 4.2.4), you can downgrade directly to any release before the current one without any key being required. The downgrade procedure is similar to the upgrade one as follow:

    • Always back up your system configurations and store in a safe place before downgrading.
    • Note that if you are downgrading to version 4.2.2 or earlier, you must delete all aggregated port settings (go to System > Network Setting > VLAN and Port Mapping on Web UI) before downgrading, or system will fail to boots up after downgrading.
    • Log on to FortiWAN as Administrator and go to [System > Administrator] page.
    • Click Downgrade to start the downgrade procedure
      • Click Browse to select the old firmware image that you want to downgrade to.
      • Select Upload.
    • Be patient while firmware is being downgraded. During the downgrade, do not turn off the system, unplug the power or repeatedly click the Submit button.
    • The message “Downgrade succeeded” will appear after the downgrade is completed. Please reboot the system afterward for the firmware to take effect.

    Note that downgrade from AscenLink is not supported.

    Previous
    Next

    Downgrading

    Downgrading

    In that case downgrade to previous releases of firmware (4.0.x, 4.1.x or 4.2.0 - 4.2.4), you can downgrade directly to any release before the current one without any key being required. The downgrade procedure is similar to the upgrade one as follow:

    • Always back up your system configurations and store in a safe place before downgrading.
    • Note that if you are downgrading to version 4.2.2 or earlier, you must delete all aggregated port settings (go to System > Network Setting > VLAN and Port Mapping on Web UI) before downgrading, or system will fail to boots up after downgrading.
    • Log on to FortiWAN as Administrator and go to [System > Administrator] page.
    • Click Downgrade to start the downgrade procedure
      • Click Browse to select the old firmware image that you want to downgrade to.
      • Select Upload.
    • Be patient while firmware is being downgraded. During the downgrade, do not turn off the system, unplug the power or repeatedly click the Submit button.
    • The message “Downgrade succeeded” will appear after the downgrade is completed. Please reboot the system afterward for the firmware to take effect.

    Note that downgrade from AscenLink is not supported.

    Previous
    Next