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FirstCup's avatar
Nov 06, 2025

IPV6 no connection RBR 850

I called my ISP and they confirmed I have an ipv6 connection available from them on a fiberoptic connection to my Orbi RBR 850 which will not transmit ipv6 to my network and when I run an online ipv6 test it confirms not connected.

 

RBR 850 firmware v7.2.7.15, I just read on the netgear site this firmware is a problem for ipv6 and to set back the firmware to a previous version. I have checked my router settings many times in the advance ipv6 settings, currently set to DHCP

 

any thoughts from anyone who has experienced problems with ipv6 connection issues would be greatly appreciated. Thanks,

17 Replies

  • FURRYe38's avatar
    FURRYe38
    Guru - Experienced User

    There is a known issue with v.15 FW and IPv6 failing to work. 
    If you need IPv6, then you'll need to downgrade the RBS first then RBR lastly to v.21 FW as that version was last known working for IPv6. 

     

    Once you have the system downgraded, please factory reset the system and setup from scratch. 

     

    Who is your ISP? 

    What brand and model# is the ISP modem/ONT? 

    • KMDonlon's avatar
      KMDonlon
      Virtuoso

      Hope an updated firmware is coming soon with an IPv6 fix...been a long time....fingers crossed 🤞 

  • plemans's avatar
    plemans
    Guru - Experienced User

    Its been an issue for a long time. And it's not just a Netgear issue, but an ISP issue. I have Xfinity, and it's not worked properly with an Arris, an OpnSense home-built router, or a Netgear. So while Netgear might be able to fix issues on their end, it's not just their issue. 

  • Thanks guys,

    My ISP is Hood Canal Communications on the Olympic peninsula. we were an unserved area until last year so a nice fiber optic was installed last year, very nice. my modem is an Adtran SN ADTN225050CD

     

    not sure what you mean by downgrade the system? Understand the factory reset maybe. I do not follow to upgrade to v.21 FW. my current FW is v7.2.7.15 and shows it as being current where would I download the older FW from.

     

    thank you

     

    • FURRYe38's avatar
      FURRYe38
      Guru - Experienced User

      IPv6 is broke on v.15 FW, last known working FW was v.21. IF you want to try v.21 then you'll need to downgrade FW to v.21 and then factory reset and setup from scratch. Be sure to disable the auto update on v.21 so the system doesn't re-load v.15. Or just keep IPv6 disbled for now until NG and ISPs get this all figured out for IPv6. All up to you. 

      • KMDonlon's avatar
        KMDonlon
        Virtuoso

        A firmware update has just appeared in the download area, no mention of IPv6 fix in the release notes though...just a security fix...

         

        https://www.netgear.com/support/download/?model=RBK852

  • FURRYe38's avatar
    FURRYe38
    Guru - Experienced User

    Something to try and see if new FW has IPv6 working if your interested:

    NOTICE: New - RBR850 / RBS850 Firmware Version 7.2.8.2 Released | NETGEAR Communities

     

    FirstCup wrote:

    I called my ISP and they confirmed I have an ipv6 connection available from them on a fiberoptic connection to my Orbi RBR 850 which will not transmit ipv6 to my network and when I run an online ipv6 test it confirms not connected.

     

    RBR 850 firmware v7.2.7.15, I just read on the netgear site this firmware is a problem for ipv6 and to set back the firmware to a previous version. I have checked my router settings many times in the advance ipv6 settings, currently set to DHCP

     

    any thoughts from anyone who has experienced problems with ipv6 connection issues would be greatly appreciated. Thanks,

     

      • KevinLiT's avatar
        KevinLiT
        NETGEAR Moderator

        Hello KMDonlon,

         

        Welcome to the NETGEAR Community!

         

        I understand that you are having issues with your IPv6 connection on your RBR850 with firmware 7.2.7.15. This issue can be a result of using an older firmware version. Please try our most recent firmware for your RBR850 FW v7.2.8.2 then factory reset your system.

         

        Please navigate to the download link below to download Firmware v7.2.8.2 for your RBR/RBS850 (Please be sure to update the satellite first):

        https://kb.netgear.com/000070385/

         

        For step-by-step instructions on how to manually update your RBK50 please navigate to the link below:
        https://kb.netgear.com/31573/How-do-I-manually-upgrade-firmware-on-my-Orbi-router-using-orbilogin-com

         

        Please keep us updated on the progress of this issue!

         

        Best,

        Kevin

        NETGEAR Team