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IPv6 Internet Connectivity Issue
Yesterday, i received an ARRIS SBG6950AC2 modem/router that was purchased from Amazon. Spectrum support was able to activate the modem/router without a problem. The cable/internet are working properly, but noticed that IPv6 internet protocol was not working. Ran an IPv6 test on the internet and came back that we did not have connectivity, only IPv4 on all devices.
After several hours talking to Spectrum/ARRIS support, I realized that neither would be able to resolve the problem. ARRIS said the problem could only be resolved by Spectrum support because it was an IPv6 issue. Spectrum support told me that they could not help because it was modem/router owned not leased.
Unfortunately, i will probably have to return the ARRIS Surfboard modem/router. I am hoping that someone who has the same model could offer any advice on how to get IPv6 internet connectivity to work before returning it. I did do a factory reset, but still have no IPv6 internet connectivity. I also upgraded to the Ultra 300 mps package.
Thank you for any help in resolving this matter.
karlbeckman Posts: 2,285 Contributor
Spectrum's internet transport is IPv4 and their dual-mode DNS server farms at 184.108.40.206 & 62 will accomodate customers using IPv6 routers on their home LANs. However, it's still an IPv4 network. As noted, Spectrum does NOT provide any technical support for equipment purchased or otherwise provided by the subscriber. You are responsible for making it work without interfering with service or functionality of any other users.0
Below are the Minimally Qualified Modems that have passed the limited no-harms certification testing.
You may also choose to buy a modem that has passed minimal testing to confirm that it won't cause harm to our network. Though permitted for use on our network, we recommend against using Minimally Qualified Modems because they haven't been tested to confirm their ability to deliver your purchased internet service speed.
Note: If you attempt to install your own device from our authorized modems list that doesn't meet the speed tier you ordered or if we can't determine the device qualification, you'll get a message that notifies you of this, and you'll be asked to acknowledge this before you proceed.
There are two lists titled "Authorized Modem to use on the Spectrum Network" compiled by community leaders on the forum. However, there is an approved list compiled by Spectrum Support updated 3/27/20 detailed by internet tier speeds (Mbps). According to Spectrum Support Arris SURFboard SBG6950AC is compatible with the Spectrum Network.
Disclaimer by Spectrum Support on recommended modems:
Modems listed here can be used on the Spectrum network. However, only Spectrum-provided equipment is supported by our technicians. View the current list of Spectrum-provided equipment.
Yes, i had seen that information on the internet while searching for a solution. That is how i ended up in the Spectrum Community forum. I tried following the link and was denied access yesterday because , "You do not have sufficient privileges for this resource or its parent to perform this action" on the forum.
I would like to follow the thread , https://forums.timewarnercable.com/t5/IPv6/Spectrum-IPv6-DNS-Issue/td-p/153284, to see the complete thread. I am not sure how i get sufficient privileges to view that thread.
I did find another thread that addess the IPv6 DNS issue, https://community.spiceworks.com/topic/1964739-dns-issues-with-ipv6. I need to read some more and see if we can figure it out. However, it may be beyond my technical skill level.
I do appreciate your response and wil focus my search on the IPv6 DNS issue as you pointed out. Thank you.
Yes, they were enabled (checked) on both Windows and the Router. On the router settings for the WAN , the IP address(s) is blank on the IPv6 settings. It did not generate automatically an IP address(s). On the Windows PCs, it generated a local IPv6 address on all the devices connected to the Home Network.
The router needs to be configured as to be able to generate and IPv6 address(s). I think there lies the problem. It needs to preconfigured. I do not know why it did not automatically configured it when it was activated on the Spectrum Network. It may have to be done by the user as it owner based router not leased.
Thank you for your input, much appreciated.
Spectrum's internet transport network uses IPv4. If you purchase equipment to utilize IPv6 on your home LAN, or to communicate with another customer on Spectrum's network who uses only IPv6, you are responsible for programming your router unit.
On the other hand, if you are trying to reach an IPv6 address somewhere out on the worldwide web (which is beyond the edge of Spectrum's transport) and they are not visible to Spectrum's dual-mode DNS servers, that is a connection issue for the site you want to communicate with.
Router was bought by my son for gaming, replace separte older modem/router provided by Spectrum, and to stop paying monthly fee. I tried your suggesting by adding the two DNS Servers IP address and checked the box to automatic generate an IPv6 address on the router settings. On the Windows PC Network properties is also enable to generate automatic IPv6 address.
I am still showing no IPv6 network access. On the Network properties it shows IPv4 address and the two DNS servers IP address. It works with the leased Spectrum Modem/router, however. I do not think that not having IPv6 connectivity affects performance, but is problematic on websites that are using that protocol as you mentioned. I just do not know exactly how to configure the DNS servers address on the router. Thank you again for your insight.
IPv6 Test Score:
It does matter in the not too distant future your IPv6 connectivity. Going back to using the Spectrum Modem/router.