Kerio Control Web - Filter Is Not Activated Categorization Is Disabled Fixed

Check for updates and ensure you are running the most recent build compatible with your license. Summary Checklist Potential Cause Renew SMA or Web Filter subscription. Time Sync Issue Enable NTP and verify the correct Time Zone. DNS Failure Set Kerio to use 8.8.8.8 for system resolution. Server Timeout

If you are seeing the error in your Kerio Control administration interface, your network's content filtering has essentially been paralyzed. This error prevents the firewall from identifying website categories (like social media, gambling, or malware sites), meaning your custom URL rules won’t work. Check for updates and ensure you are running

Ensure your Kerio Control is using reliable DNS servers (like 8.8.8.8 or 1.1.1.1) under Configuration > DNS . 3. Clear the Web Filter Cache DNS Failure Set Kerio to use 8

The Web Filter uses SSL/TLS certificates to communicate with categorization servers. If your Kerio Control system time is incorrect, the certificate validation will fail. Go to . Ensure your Kerio Control is using reliable DNS

Ensure is checked and the time zone is correct. Even a five-minute discrepancy can cause the Web Filter to show as "not activated." 6. Update to the Latest Version