MI424WR Rev. I Firmware Upgrades

Actiontec made this model device for several different Internet Service Providers (ISPs) and we never made a Non-Customer Specific (NCS)/retail version. So at the request of those ISPs, they have asked us not to post any firmware upgrades on our support site. So you will need to contact the ISP that your model came from based off the logo on your device. Also, if you purchased this device from another location other than your current ISP please refer to ISP whose logo is on the device for help finding the most current firmware. If you are still having issues please let us know below in the comments section. 

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74 comments
  • Nick

    You cannot upgrade to that firmware version. You have the latest firmware for your device.

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  • Hi,
    i got the actiontec mi424wr, from Verizon,
    can i use that with RCN?

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  • You should be able to use the MI424WR as a router on any network. But if you are using it as your main connection to your ISP you will need to contact them and ask them. Because we have not heard about this ISP before and do not have any idea of there requirements.

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  • https://www.rcn.com
    RCN requires
    DOCSIS 3.1 and 32 downstream channels for speeds higher than 500 Mbps,
    my current device is
    Firmware Version: 40.21.24
    Model Name: MI424WR-GEN3I

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  • Mo,

    What we meant to say is we cannot say if this device will work with your ISP or not. It was only designed to work on the Verizon network. It can be used just as a router but we do not recommend you using it as the main router for an ISP other than Verizon.

    Also, it has been discontinued so there will be no new firmware releases coming out for this device either.

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  • I also have a "Verizon" Branded MI424WR-GEN3I REV I, which I purchased directly from Actiontec online store in 2014, when Verizon was operating it's FiOS service in this state. Since then, all operations have been sold to Frontier Communications and I have continued to use my router with no problems. The current F/W version is 40.22.3.3 and the serial number ends in 5991. I have access to the open source firmware that Frontier has made available for this model. Many versions to choose from, so I need to know what is the most recent and up-to-date I should look for and what would be the proper procedure to perform the update if needed?

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  • Marc,

    The 40.22.3.3 was that last firmware released for that unit. There are no further updates for that device since it was discontinued.

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  • According to the info I found here:
    http://opensource.actiontec.com/mi424wri.html
    There are two that appear to be updates from the version of my device. (GEN3I)
    What am I missing?
    And would REV G be a downgrade from REV I? Frontier is offering to replace my device with REV G (GEN3G).

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  • Marc,
    Frontier had 2 versions for the Rev I units. Your version was the first which uses 40.22.3.3. The second version used 52.0.7. The firmware's are not interchangeable between the 2 versions.
    The rev G is a older version of the MI424-WR series and would be a downgrade.
    All MI424-WR series devices were discontinued by mid 2018.
    We would recommend contacting Frontier to find out what the most current model is that they provide to their Fios customers.

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  • If you will please notice, as I stated in my first post, my "unit" is NOT a "Frontier" branded unit!! It is a "Verizon" branded unit which is still being used on the Frontier FiOS system. As I'm sure you are aware, the FiOS operations were purchased by Frontier from Verizon on a statewide basis a few years ago. There was no need to change/upgrade/update my unit during the transition from one company to the next, or at any time since, even as I have updated my FiOS plan speed while Frontier has operated the system.
    As I also stated, Frontier is offering to replace my REV I with a REV G if I am to upgrade my FiOS service speed. The REV G is the latest and only unit offered by Frontier.
    To be clear, the unit I have is a "Verizon" unit, manufactured for Verizon and purchased directly from Actiontec for use on, what was then, a Verizon system. It is NOT a unit manufactured for Frontier.
    Is what you stated still true regarding a unit manufactured for "Verizon"??
    You stated, "Frontier had 2 versions for the Rev I units. Your version was the first which uses 40.22.3.3. The second version used 52.0.7. The firmware's are not interchangeable between the 2 versions.".
    Also, is the version of the REV I determined by the serial number?
    My current unit is:
    MI424WR-GEN3I with serial number ending in 5991. (Manufactured for Verizon)
    Unit being offered by Frontier as an upgrade is:
    MI424WR-GEN3G with serial number ending in 5991. (Manufactured for Frontier, I assume)
    Please explain in some detail why 52.0.7 is not the F/W that would be the most up to date for my unit.
    Thank you.

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  • I am in Vietnam. I am using Viettel's optical cable network and I am using MI424WR-GEN3I (firmware 40.21.18) of Verizon as the main router for PPOPE service, for the whole network of about 10 devices in the family. I do not use any Verizon services, because Verizon is not available in Vietnam.

    Please help me to decide to upgrade to the latest firmware of MI424WR-GEN3I 52.0.7.

    Thanks.

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  • Luu,
    The unit you have has been discontinued and can not be upgraded to the 52.0.7 firmware. The last firmware for that specific hardware version is 40.22.3.3. We do not maintain firmwares for those units. All firmwares come from Verizon. The units need to be on the Verizon Fios service to receive updates.

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  • Admin, thanks for your help.

    I decided not to upgrade the firmware for my router.

    My father just found a MI424WR router from the flea market, but didn't know the exact firmware version. I will retest if the firmware version is higher then I will use the new one.

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  • I installed DD-WRT on my MI424WR.

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