cannot complete connections

[d3x0r]

mail.yahoo.com
www.rt.com

Chrome doesn't allow disabling ipv6 (though I guess I can disable it in network adapter)...
a lot of IPv6 adresses do work, and the two sites above it attempts a connection and sends a few packets back and forth, (I do receive also) but it does not complete the connection.
in the case of RT.com I tried accessing through a proxy site and it was able to load; but I am unable to connect from my network...

[snarked]

The problem with Yahoo is Yahoo's fault.  The only "correction" that works with regard to Yahoo is the ipv4 only entry in the "hosts" file.  They should not have a working IPv6 DNS entry if their web server won't accept the connection, yet they do.

I don't use the rt.com site, so I can't offer any suggestions regarding it.