[tsmarsh]

I found that switching to googles DNS fixed those issues for me (I'm on the south shore).

There is still the occasional delay, but its similar to the ipv4 service from Comcast.

[mitchty]

I had to switch dns for ipv4 regardless.

But ipv6 actually seems to be around 50% of my traffic now. Native dual stack is way better than the tunnel nonsense they were trialing a few years back. I've had zero issues with ipv6 and comcast now that they went to proper dual stack.