Kerio Control Web Filter Is Not Activated Categorization Is Disabled Fixed

If the filter remains disabled due to network instability, you can manually disable the "Reliability" check.

The error "Categorization is disabled" appears if:

Check your own in Kerio. Ensure there is a rule allowing the "Firewall" host itself to communicate with the "Internet" via "Any" service. Step 4: Clear the Web Filter Cache via SSH If the filter remains disabled due to network

Locate the checkbox labeled and ensure it is checked. Click Edit or look at your forwarding list. Add reliable, highly redundant public servers to the list: Google DNS: 8.8.8.8 and 8.8.4.4 Cloudflare DNS: 1.1.1.1 and 1.0.0.1 Click Apply to execute the configuration change.

Click on the button or locate the Kerio Control engine service status. Step 4: Clear the Web Filter Cache via

The most effective way to force the filter back into an "Activated" state is through the SSH console. This prevents the system from automatically disabling the filter when it encounters a brief connection hiccup.

After completing the steps:

This is the most common cause. The web filter is a separate, licensed component.

Web Filter categorization disabled. Serial number: ko-197974 Click on the button or locate the Kerio

This report outlines the causes and solutions for the error where . This issue typically stems from connectivity failures, authorization timeouts, or expired security tokens used by the Zvelo categorization engine. 1. Root Causes

Users report that web filtering is not functioning as expected in Kerio Control. When checking the settings, the status shows “Not Activated” and “Categorization is Disabled.” As a result, URL filtering, content rules, and category-based policies are not enforced.