This error is a critical red flag. It means your content filtering engine is offline. For businesses relying on Kerio Control for productivity, compliance, and security, disabled categorization turns your expensive UTM appliance into a basic NAT router.
: Kerio Control is designed to automatically attempt to revert to normal operation after one hour of the error occurring. This error is a critical red flag
: Avoid using Google's DNS (8.8.8.8) as custom forwarding servers for these requests. Use Cloudflare ( 1.1.1.1 ) or OpenDNS ( 208.67.222.222 ) instead. This error is a critical red flag