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rmccall2k20's profile

New Contributor


4 Messages

Wednesday, December 1st, 2021 1:15 PM

IPv6 is broken in every way that matters on CGA4131COM

IPv6 doesn't work. The CGA4131COM will not route IPv6 traffic that does not originate from itself. The default IPv6 gateway pings, but the link local address does not ping and traceroutes fail no matter what IPv6 address I give it. DHCPv6 works and I receive an IP, but it cannot go anywhere.

Has anyone encountered this behavior?

Comcast support doesn't know what IPv6 is at all whatsoever. They have no idea how comcast implements ipv6 or even how to troubleshoot my issue, which I find disgusting.

Official Employee


80 Messages

2 years ago

Hello and thank you for taking the time to reach out to us here on our Comcast Business Forums. I'm truly sorry ot hear that you have been having issues with the IPv6 and would love to look into this further for you.

Please send us a direct message to "Comcast Business" with your full name, address and phone number.


To send a direct message you may need to:
Click "Sign In"
Click the "direct message" icon
Click the "New message" (pencil and paper) icon
Type "Comcast Business" in the "To:" line and select "Comcast Business" from the drop-down list which appears. The "Xfinity Support" graphic replaces the "To:" line
Type your message in the text area near the bottom of the window
Press Enter to send it