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IPV6

4 Topics

C6300 not able to reach ipv4 sites, but only ipv6 sites
Started using my C6300 at a new home with Xfinity/Comcast cable in May 2017. About two days ago (mid-September 2017), we couldn't reach most sites and received 'server can not be found' or 'internet not reachable' errors to ipv4 sites. We can reach the big ipv6 sites like Google, Facebook, Youtube, via both wifi and directly connected with ethernet to modem. I called Xfinity and rebooted modem multiple times, to no avail. Xfinity rep stated it could be a firmware change from Netgear (although from i read online, Xfinity/Comcast controls the firmware updates of the netgear modems?). I can see ipv6 address, but no ipv4 router address in my wifi settings. And when i test my ip address on the one website i can reach (http://whatismyipaddress.com/ds-check), it shows an ipv6 address, but ipv4 is "not detected." Xfinity stated i should test one of their modems, or have technician come out to test one (for a fee). The other solution offered was to try a factory reset on my modem. Any insight out there on why after months of working fine, ipv4 sites can no longer be reached? Thanks TJ
Solved
TJEwing
Sep 26, 2017 Place Cable Modems & Gateways
6.1KViews
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5Comments
Netgear C3000 IPV4 address issue
Hi, I noticed that I have a IPV6 address with netgear C3000. However IPV6 could sometimes blocked by other website because of potential DDOS attack source. So I want to get IPV4 only, how can I do that, please provide me the steps, thanks! Alex
alexmark
Mar 02, 2017 Place Cable Modems & Gateways
2.4KViews
0likes
1Comment
disable ipv6 CM 500
TWC is telling me that they don't support IPv6 from my cable modem. I don't see an option to disable it in the GUI. Here is what I see: Startup Procedure Procedure Status Comment Acquire Downstream Channel 633000000 Hz Locked Connectivity State OK Operational Boot State OK Operational Security Enabled BPI+ IP Provisioning Mode IPv6 Only ipv6Only(1) Hardware Version C312T00-01 Firmware Version V1.01.04 Ideas?
wazzuppTWC
Oct 17, 2016 Place Cable Modems & Gateways
3.9KViews
0likes
3Comments
IPv6 not connecting on CG3000Dv2
I am not ble to connect to IPV6. Comast does support IPV6 bit my IP address is only for IPV4.
ken7
Aug 11, 2015 Place Cable Modems & Gateways
4.3KViews
0likes
3Comments