To resolve the error "Kerio Control Web Filter is not activated, categorization is disabled," you typically need to address communication issues with the
8.8.8.8.categories.kerio.com.Kerio Control Filtering Service (handles URL categorization)Kerio Control Content Filtering Service (handles SSL inspection and categories)If the issue persists after following all steps: To resolve the error "Kerio Control Web Filter
Access the Kerio Control console via SSH (holding Shift while clicking Status > System Health to enable it). Execute these commands: Restore connectivity to categorization servers 4
The error “Kerio Control Web Filter is not activated. Categorization is disabled.” typically indicates a licensing, connectivity, or service state issue. Following the diagnostic and resolution steps above will restore category-based web filtering. If unresolved, contact GFI/Kerio support with debug logs and license file details. Use Diagnostic → Ping to 8
: After making DNS changes, a full reboot is often required to clear the "Invalid Authorization" status and fetch a fresh 21-day token. support.keriocontrol.gfi.com Verify Basic Activation
Navigate to Content Filter > Applications and Web Categories and check Enable Kerio Control Web Filter.