Kerio Control Web Filter Is Not Activated Categorization Is Disabled Fixed Jun 2026

Ensure you are running the latest version of Kerio Control. Check for updates and install the latest version if necessary.

SSH into the box or access local console

The Kerio Control Web Filter is a premium add-on service powered by Cyren (or GFI, depending on your version). It requires a valid, active subscription. Go to Status > License Details . Ensure you are running the latest version of Kerio Control

Kerio Control relies on a local or cloud-based to determine if a website belongs to “Social Media,” “Malware,” “Streaming,” etc. When the error appears, it means:

After completing the steps:

To understand the gravity of the failure, one must first understand the architecture of Kerio Control’s filtering mechanism. The system does not function as a monolithic block; rather, it relies on a symbiotic relationship between two distinct elements:

In the field, input high-availability public resolvers like Cloudflare ( 1.1.1.1 ) or OpenDNS ( 208.67.222.222 ). It requires a valid, active subscription

Navigate to the configuration panel in the web administration interface.

Warning: Direct file manipulation can break your installation. Backup first. When the error appears, it means: After completing

No categorization data appears in traffic logs.