Ipv4 Broke?

>So I was sitting here cruising along then blam, internet dies. I goto google and it's up... ok must have been a temp thing.
>NOPE!
>Callup comcast have 3 different people call me by the wrong name and finally get to conclusion of upgrading my modem
>sweet.
>Problem still exists No Interwebs.
>WTF comcast
>Comcast: idk I'll send out a dude tomorrow.
>Fuck this shit. plug modem direct to outside line, google still works.. ping google...
>Oh hello... Ipv6 Address response?
>FINALLY!
>Finds Ipv6 proxy gateway to Ipv4 land and blam back on 4chan.

Now how do I Perma-fix?

Have you checked your router's IPv4/6 settings? If it auto-updates its default values can change.