https://labo-microsoft.supinfo.com/articles/DNSIPV6/

pb ipv6
https://windorks.wordpress.com/2014/09/17/the-day-ipv6-broke-my-dc/

pb connu desactivant ipv6
https://windorks.wordpress.com/2014/02/24/known-issues-with-disabling-or-unbinding-ipv6/