Kerio Control Web Filter Is Not Activated Categorization Is Disabled Fixed -

Kerio Control: “Web filter is not activated — Categorization is disabled” — Fix Guide

Summary

This message means Kerio Control’s web filtering engine cannot categorize or block web content because the URL categorization service is offline or disabled. As a result, the Web Filter feature won’t evaluate sites by category and will either allow or block traffic only by IP/URL rules or default policy. The steps below diagnose common causes and restore categorization and web filtering.

Are you seeing any specific DNS timeout or authorization errors in your Warning or Error logs? Kerio Control: “Web filter is not activated —

Do you need help enabling SSH or locating your license key to proceed with these steps? Ensure outbound TCP port 443 (HTTPS) is allowed

Warning Logs: Check for the absence of "Invalid authorization" or "Unable to categorize" entries. typically occurs when the firewall detects a loss

💡 Pro-Tip: If the filter deactivates frequently, check your internet link speed. Slow links can trigger the "unreliable" flag, which the SSH fix above permanently ignores. Using Kerio Control Web Filter

• Ensure outbound TCP port 443 (HTTPS) is allowed from the Kerio server to update.brightcloud.com and licensing.gfi.com.
• Temporarily disable any firewall rule that blocks the Kerio machine itself (self-protection rules).

typically occurs when the firewall detects a loss of reliability in reaching the categorization servers or if there is an authorization failure with the third-party service ( Common Causes DNS Reliability Check Failure

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