Netflix login via v6 broken

[Heather Schiller via NANOG <nanog () nanog org>]

Netflix netops/eng folks, you might want to take a look at your login and
pw reset flows for IPv6.  Chased a problem all morning of not being able to
login, problems resetting passwords, and not being able to login
immediately after pw reset. Tried on multiple devices.  All solved by
disabling IPv6.   I knew there was a difference in content available on v4
vs v6, so took a guess there might be problems logging in as well.

 --Heather