Last Modified: Oct 06, 2020
Opened: Apr 28, 2015
[FW] FQDN: Sometimes IP-mapping update doesn't refresh all mappings with the first attempt. As a result, FQDN address entries may be missing or stale.
Stale or missing FQDN/IP address resolutions.
FQDN sources and/or destinations in network firewall rules.
Set the Min/Max TTL to 0 in GUI : DNS -> Settings -> Caches This will ignore any TTL published by DNS server.