Kerio Control Web Filter Is Not Activated Categorization Is Disabled Fixed

Corrupted local database can cause categorization disabled.

| Component to Check | Action | Expected Result | | :--- | :--- | :--- | | | Navigate to Logs > Warning Log | No new "Invalid authorization" or "categorization disabled" errors. | | Test URL Categorization | Under Content Filter > Applications and Web Categories , use the "Test URL" tool with a common site like google.com . | The tool returns a category (e.g., "Search Engines / Portals") without an error. | | Manual URL Check | Go to Content Filter > Applications and Web Categories and click the Add button. Enter a test URL (e.g., youtube.com ). Ensure the "Detected Content" column shows a category. | The category is displayed, confirming the filter is working. | | User Experience | Ask a non-admin user to browse to a known blocked category. | The site is blocked, and a block page is shown, confirming policy enforcement. |

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This comprehensive guide breaks down exactly why this error happens and provides actionable, step-by-step solutions to fix it. Why This Error Happens Corrupted local database can cause categorization disabled

Firewall rules, ISP outages, or deep packet inspection (DPI) are blocking traffic to the cloud filtering service. Steps to Fix: "Kerio Control Web Filter is Not Activated" Follow these steps in order to resolve the issue. 1. Verify License and Subscription Status

Click Update License Info to force the appliance to check in with the GFI servers. 2. Check DNS Resolution on the Firewall

Kerio Control automatically checks external servers. If 10 consecutive queries fail within 60 seconds, it marks the engine as unreliable and disables categorization. | The tool returns a category (e

This issue is typically caused by between Kerio and its categorization provider, Zvelo. Key Causes of the Error

Look at the Dashboard license tile to ensure it's not in "Trial" or "Unregistered" mode.

Step 2: Clear Authorization Tokens via SSH Database Modification Ensure the "Detected Content" column shows a category

Click the button. This refreshes the relationship with the GFI services. 3. Check DNS Settings (Crucial) Kerio Control requires accurate DNS to reach ://kerio.com . Go to Configuration > Interfaces .

Large time drifts can cause certificate and token failures. Ensure the system time is synchronized. Verify Admin Settings: Navigate to Content Filter Applications and Web Categories

Restart the web filter service: