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

Kerio Control Web Filter Not Activated: Categorization Disabled

  1. Log into the Kerio Administration Console (locally or via MyKerio).
  2. Go to Status → Services.
  3. Find Web Filter (may be listed under "Content Filtering").
  4. Click Stop, wait 10 seconds, then Start.
  5. After restart, go to Web Filter → URL Categorization and check if status says "Active."

Fix 8: As a Last Resort – Upgrade Kerio Control Version

If you are running Kerio Control 9.2.x or older, GFI has deprecated the old categorization protocol. Versions 9.3+ use a newer, more stable API. Log into the Kerio Administration Console (locally or

What specific error message appears in your Warning or Error logs? Fix 8: As a Last Resort – Upgrade

typically stems from a communication failure with Kerio's update servers or a synchronization error with the Restart the Kerio Control Engine wait 10 seconds

Steps:

This article addresses the common "Kerio Control Web Filter is not activated; categorization is disabled" error. This issue typically prevents the firewall from effectively blocking or allowing websites based on their category, leaving your network vulnerable or causing connectivity disruptions. Understanding the Error

Fix #4: Verify DNS and Licensing Server Reachability

Kerio Control must resolve and reach: