Xfinity with IPv6 clue?

I hate resorting to NANOG, but I’ve spent over 5 hours on the phone with Xfinity the past two days, and I can’t seem to get someone who understands my problem.

I do not have working IPv6 – I do not get an address or PD. I have working IPv4. Xfinity wanted to blame this on my modem, so I went and picked up a Xfinity modem. From the web site on the xfinity modem, I can ping IPv4 addresses fine. I can not ping IPv6 addresses from the modem itself, thus taking my equipment out of the picture. This is a new activation. Xfinity keeps asking questions like “well, can you surf the internet”, which shows that they seem to totally lack understanding. I’ve talked to at least 7 people, and have reached my breaking point. I know, I know, its residential and I should have low expectations. I’m sorry for the noise, but I can’t seem to find anyone with clue.

Nanog is magical. I have working IPv6 now.

Did you get in touch with someone? What was the problem?


Did an actual person follow up with you privately after ipv6 got working
on your connection? ... Or was it more like magic silence from their
end. And suddenly it "just" worked?