We have AT&T fiber and it's nice. It has native IPv6, supposedly, so I enabled it, both on the main tab and under DHCP settings (Prefix Delegation, Address Assignment). 2Wire 5268AC, incidentally.
From the IP Utilities menu (in the router), I attempt to ping google with IPv6 and... nada. Same if I traceroute but in that case I get several 2001: addresses. Wait a second. Those are for Teredo tunneling. Isn't this supposed to be native?
I checked the Link Tree tab and voilĂ , ip6rd0 is disabled.
So, I think either the firmware is hosed or the routes advertised to it are for Teredo instead of native.
Hoping some bored network engineer at AT&T sees this.
Techie scheduled to come by on Friday morning. Maybe they can put in a ticket with the right people...