I know it doesn't help your problem, but friends don't let friends use public DNS resolvers (Google, L3, Open DNS, etc.). ;-) ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest-IX http://www.midwest-ix.com ----- Original Message ----- From: "David Sotnick" <sotnickd-nanog@ddv.com> To: "NANOG" <nanog@nanog.org> Sent: Thursday, October 19, 2017 10:41:46 PM Subject: Google DNS intermittent ServFail for Disney subdomain Hi Nanog, I am principal network engineer for sister-studio to Disney Studios. They have been struggling with DNS issues since Thursday 12th October. By all accounts it appears as though *some* of the Google DNS resolvers cannot reach the authoritative nameservers for "studio.disney.com". This is causing ~20-30% of all DNS requests against Google Public DNS 8.8.8.8 / 8.8.4.4 to fail for requests in this subdomain. The name servers reside in 153.7.233.0/24. Might someone be able to *connect me* with someone at Google to assist my poor colleagues who are banging their heads against a brick wall here. Thank you, David