NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
IPv6
Since replies have been turned off on all previous discussions regarding the IPv6 trouble introduced with version 7.2.7.15 and newer, I needed to create a new thread.
Checking in on this once again, last mentions stated they were aware, were working on it, etc. I realize the 850 is old hardware but a properly working current firmware would be nice. Perhaps someone can share some insight on the delay? Thank you.
14 Replies
Is it correct to infer that prior to v7.2.7.15 being released in Feb, 2025, your Orbi 850 system worked correctly with IPv6 enabled, but since then you have been forced to not enable IPv6?
One of those discussions probably mentioned the ISP?
Correct. But I decided to stay on V7.2.6.31_5.0.24 since there are no IPv6 drops with this and prior versions. My ISP is Cox, I am on a fiber connection.
A lot of the IPv6 issues I've seen stems from DNS issues. Try enabling IPv6. But change the dns provider for both IPv4 and IPv6. See if that helps the stability with ipv6
Thanks for input, unfortunately have tried that several times in the past with no success. Went through all the usual troubleshooting steps previously.
Thanks for being patient with us. Perhaps it would be helpful to summarize the problem. i.e.
since there are no IPv6 drops
It appears that the initial IPv6 connection works for some time on the newer firmware releases, and then there is a "drop"?
(which is observed how?)
and only restarting the system restores IPv6 communication correctly until the next episode?
FYI, straight from Cox on setting up IPv6 on Orbi:
To set up IPv6 with Cox on a Netgear Orbi mesh system, log in to orbilogin.com, navigate to Advanced > Advanced Setup > IPv6, and select DHCP as the internet connection type, choosing "Get Automatically from ISP". Cox uses DHCP for IPv6, requiring no special login or static address settings.Step-by-Step SetupAccess Settings: Open a browser, go to orbilogin.com or orbilogin.net and log in to the main Orbi router.Navigate: Go to Advanced -> Advanced Setup -> IPv6.Configure WAN:Internet Connection Type: Select DHCP or Auto Detect.IPv6 DNS Address: Select Get Automatically from ISP.IP Address Assignment: Select Auto Config.Configure LAN: Ensure Prefix Delegation is set to /64 (or up to /56 if needed).Apply: Click Apply to save settings and let the router reboot.Key ConsiderationsOrbi Mode: These settings only apply if your Orbi is in Router mode. If Orbi is in AP Mode, the upstream modem (like a Cox Panoramic Gateway) manages IPv6.Modem Requirements: Ensure you have a DOCSIS 3.0 or 3.1 modem to support IPv6.Verification: Visit a site like test-ipv6.com to confirm your connectivity.Troubleshooting: If connections are slow, try setting IPv6 DNS to use Google DNS (2001:4860:4860::8888 / 8844) or Cloudflare (2606:4700:4700::1111) if auto-configuration fails to provide speed.
Have tried multiple dns servers, currently using Cloudflare for IPv4 and 6
I'm on V7.2.6.31_5.0.24 for my set of Orbi 750's. They are set up in AP-mode with a Ubiquiti UniFi Cloud Ultra doing the routing, with IPv6 working fine.
Will I be affected with IPv6 stopping to work on Wifi if I upgrade to a newer FW for the Orbi 750 or is this only when using the Orbi in router mode?
If its in AP mode, its the Ubiquiti managing that aspect. You can upgrade without worrying about IPv6.
Found this online:
User Class: Type 1 into this box. Entering "1" bypasses the empty-string bug in Netgear's firmware, forcing the Orbi to successfully request an address block from Cox's ONT.
I am currently testing this out to see if I can maintain an IPv6 connection with firmware V7.2.8.5_5.1.21.
Where is this input at on the RBR?
Top right hand corner in the IPv6 setting tab under Advanced/ Advanced.
I added a "1" in the user class box and applied it. Only time will tell...
Dropped an IPv6 connection after about 30 minutes adding the 1 in the user class settings box, now I tried changing IPv6 filtering from Secure to Open... still observing and checking here: https://test-ipv6.run/
Dropped again in about an hour... I am done testing.
