NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
FirstCup
Nov 06, 2025Guide
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,
4 Replies
- plemansGuru - 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.
- FURRYe38Guru - 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?