Geo-IP Filtering allows the administrator to block connections coming to or from a geographic location. Botnet Command & Control Filtering allows the administrator to block communications to suspected command and control IPs based on the reputation database built by the Sonic GRID research network.
If for any reason, the Geo-IP filter is unable to get the location of the IP address, it is categorized as "unknown country"
Clearing the Geo-IP cache and allowing it to resolve the locaiton again will help in eliminating this issue
Go to the diag page of the firewall: https://220.127.116.11/diag.html (where 18.104.22.168 is the firewall IP)