My IPv6 suddenly stopped working.
My IPv6 has been working for a year.
But it stopped working without warning a week ago.
I have rebooted the cable modem several times without helping.
I tried reaching Comcast with the support chat a couple of times,
but no resonse yet.
The cablemodem settings all look correct (visible with browser to 10.1.10.1) .
But I cannot ping my ipv6 gateway 2603:3024:1aaf:2001 nor the ipv6 dns server 2001:558:feed::1, which always worked before. And of course I cannot use IPv6 with ssh or browsing. Maybe a routing table upstream at Comcast needs a kick?
(FYI the IPv4 connection is working.)