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Forum Discussion
Leavemeb
Nov 24, 2025Aspirant
Strange Reddit IPv6 issue
Hi there, I've got a relatively new 770 on the latest firmware v10.5.20.7 things work mostly as they should but there is a consistent issue that I believe is a bug possibly. When I have IPv6 ...
Leavemeb
Nov 24, 2025Aspirant
I had RBK753 previously on the same network, same provider (Spectrum)
Computer is wireless
Devices are all connected to the RBR (I removed the RBS to test this)
iPhone 15 latest OS I think 26
FURRYe38
Nov 24, 2025Guru - Experienced User
What is the Mfr and model# of the Internet Service Providers modem/ONT the NG router is connected too?
How is IPv6 configured on the RBR when IPv6 is enabled?
I know of one other that is on spectrum, however has a CM3000 modem and a 970 series orbi system and they just mentioned last week that IPv6 started working for them. Seems to be ISP related for him which is also a factor as well. ISP level IPv6 has been problematic over the years.
- LeavemebNov 24, 2025Aspirant
Its an ES2251 Modem DOCSIS 3.1 from Spectrum
IPv6 is set to DHCP and everything is default I haven't made any other changes
I've never had issues with a previous Orbi that I just swapped a few weeks ago for the 770.
You could be right that its a Provider issue I don't know how to diagnose that, unless I connect directly through the router which I can't do wired unfortunately.
- FURRYe38Nov 24, 2025Guru - Experienced User
So this one user who has the 970 series and and spectrum is using the following on theres:
"Using 'Auto Config' with Cloudfare IPv6 addresses manually entered in the 'IPv6 Domain Name Server (DNS) Address' area."
Some to try with your system.
- LeavemebNov 24, 2025Aspirant
Is that the same as the person from this thread? "Issues with various apps on android devices" because it sounds like the same issue and they seem to say that just shutting IPv6 off is the solution for them. I can't do that unfortunately I need IPv6 for other things. Accessing Reddit is just the most consistent way to see the issue.