: Avoid using Google DNS (8.8.8.8) as the primary forwarder for categorization queries. Use Cloudflare (1.1.1.1) or OpenDNS instead.
Check your license status in the GFI Administration Interface . : Avoid using Google DNS (8
If your Internet connection is slow or your ISP has unstable DNS, Kerio might disable the filter prematurely. You can disable this "safety" check via SSH: Log in to the console via SSH. : Avoid using Google DNS (8
Sometimes the service itself is turned off manually or due to a configuration error. : Avoid using Google DNS (8