Infoblox encountered an issue with the DNS service not starting after an upgrade to NIOS 8.4.5
The reported behavior with Infoblox DNS member(s) not starting DNS service after upgrading to 8.4.5 has been identified as a software defect NIOS-72797. This defect is exposed only in NIOS 8.4.5 code release.
The software defect may be exposed only when authoritative zones are defined and associated with multiple Named ACL. The result is the DNS configuration file missing important part of this Named ACL declaration which causes the DNS service not to start.