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Forum Discussion
My Orbi RBR752 drops IPv6 every hour or so.
I have had my Orbi RBR752 (with the latest firmware) set up with IPv6 for a year on a Xfinity gigabit connection through a Netgear CM2000 modem. A few days ago I was changing the DNS settings for IPv6 which I also have done before without problems. I kept DHCP but when I applied the IPv6 settings I didn't get an IPv6 IP and IPv6 did of course not work. Then I tried "Auto Detect" and the connection was set with 6to4Tunnel. I have never seen that before, I have always gotten DHCP with Xfinity. Then I tried to set it back to DHCP again and got an IP and it worked. For an hour or so. Then IPv6 stopped working and when I checked it said: IP Not available I went through the same procedure: Auto Detect, getting 6to4Tunnel, then set it to DHCP and getting an IP. After another hour IPv6 stopped working with the same IP Not Available message.
Is this a router problem or is it caused by something my ISP did? Is there anything I can do to get IPv6 to stay up more than an hour? Right now I just disable it until I figure this out,
39 Replies
what firmware version are you on?
I'm using a RBK752 on xfinity with ipv6 enabled. (I switch routers a lot)
Firmware is latest as far as I know: V4.6.5.14_2.0.54
I have had IPv6 enabled and working on this firmware until a few days ago when it now drops after an hour. I have to go in and disable/enable it again and it works for another hour or so. So this is a new problem. I have not made any changed to my system, same router/satellite/modem/connection. Maybe I have to factory reset? Restart the modem? I can't figure this out.
You can try factory resetting the router/modem if you'd like.
It could just be a xfinity issue.It shouldn't impact much services if ipv6 is disabled.
It comes disabled from default and many don't even enabled.
Your lucky, every hour. My RBK853 it's whenever. Whereas, on the RBRK853 up until the mid-v3s FW, IPv6 was rock solid. Then there were some changes and one was on the IPv6 Set Up Page that makes no sense and that's when my connection crapped out. Since we are up to v4.x FW, nothing has been done and we can't rollback, IPv6 is so very flaky . . . at best.
I wouldn't be surprised if it's the newer FW. I have Centruylink Gigbit Fiber and go directly from the ONT to my RBR850/SKX30/RAXE500. The ONT, a Calix, I got for free with a C3000A router. The CL UI is fantastic and setting up IPv6 is a bit of a chore, but it is so great in the end. The Installer, a Field Manager, said he knew I was the type that would change everything out. So he showed me how to handle the Fiber and gave me a print out of all the paperwork that they have that covers my connection to them, i.e., PPPoE Login and PWs. The IPv6 setup had no special requirements.
On my RAXE500, IPv6 is pretty solid. But I do think I have noticed hiccups. I understand that a new version of FW may come this week and we'll have to see what it does. If it does not break it. Hopefully, unlike the RBR850, I'll be able to revert, if so.
But IPv6 connections seems to be a NG Product wide issue. And if not now, don't be surprised if it shows up in future after a FW update. Then it's time to hit the Forums and let everyone, NG, know that after this or that the IPv6 works, doesn't, kinda does . . .
Actually, I had it happen every hour until I upgraded to the latest firmware. Now it's "only" happening every week or so. It's obvious that several ISP's has changed something with regards IPv6 and Netgear is not up to date on it so the IPv6 IP drops ever hour/week or whenever some kinda of IPS update to IPv6 happens, probably through DHCP. Yes, I can disable IPv6 but I have devices that benefit from it so I would like to have it work like it did before.
- And it happened again yesterday. I notice that there's a very short break in Internet connection when it happened. Maybe something Comcast does on a weekly basis with IPv6?
Does the System Uptime change value under the routers Debug.htm page when this happens?
