Fix: Kerio Control Web Filter Not Activated If your Kerio Control Web Filter shows "Not Activated" and "Categorization is Disabled," it usually means the firewall can't verify its license or reach the Kerio update servers. 1. Check Internet Connectivity
: Often, a simple service restart or hardware reboot forces a re-authentication with the license servers. Verify DNS Settings : Ensure Kerio Control can resolve external hosts. Use the Google Public DNS (8.8.8.8) or Cloudflare DNS (1.1.1.1) as forwarders. Root Causes & Solutions 1. Expired Authorization Token (Zvelo)
typically due to a loss of reliability in the DNS checks to Kerio's update servers or an authorization token expiration support.keriocontrol.gfi.com Immediate Fixes Disable Reliability Detection (SSH Method): Fix: Kerio Control Web Filter Not Activated If
If the Web Filter remains disabled due to "Reliability detection" (where the firewall stops checking categorization if it thinks the connection is unstable), you can force it to stay active.
Connectivity: He pinged the Kerio update servers. The packets returned instantly. Navigate to Web Filter → Settings
Toggle Settings: In the admin interface, go to Content Filter > Applications and Web Categories. Uncheck and then re-check Enable Kerio Control Web Filter, then click Apply.
The error message "Kerio Control Web Filter is not activated, and categorization is disabled" occurs when the system can no longer reach its update/categorization servers, often due to DNS timeouts or authorization failures. Solution 1: Disable Reliability Detection (Technical Fix) The error message "Kerio Control Web Filter is
If the issue persists, it usually points to a DNS or License communication problem. Check DNS Forwarding