Am 30.11.18 um 19:00 schrieb ѽ҉ᶬḳ℠ via Unbound-users: > Are both instances using the same ISP and DNS upstream resolver (from the ISP)? both are located in the same subnet. They don't use a forwarder. In the meantime I've a vague idea. Both systems use auth-zones for "." Maybe there is a relation, maybe not. I plan to update next week anyway. Andreas