One of appengine servers in Brazil is being blocked by a major Internet provider

[Edmundo Mizutani]

Our clients are constantly failing when trying to access our appengine application. Apparently, there is a rotation in the resolved ip address for our domain. When the resolved ip happens to be the one bellow, it doesn't work only when the user is using the NET Internet provider.

https://ipinfo.io/2800:3f0:4001:808::2003

Of course, that same ipv6 address must be used for a huge variety of other services, so it is not affecting only our app. Since we are a small company, we don't have contact for that kind of support at that provider. So, in our name and all other services that use that server, is there anyone in Google that can investigate and solve this problem?

[Sam (Google Cloud Support)]

Cloud Support here! We're working with Edmundo behind the scenes to figure this out.