Kerio Control Web Filter Is Not Activated Categorization Is Disabled Fixed Hot! [FREE]

If the UI is unresponsive or the filter refuses to activate despite a valid license, a service restart via SSH or the local console often resolves the "stuck" state.

The Kerio Control Web Filter is an add-on subscription. If your Software Maintenance Agreement (SMA) or specific Web Filter license expires, the service shuts down.

Add the URL *.zvelo.com and point it to a reliable DNS provider like ( 1.1.1.1 ) or OpenDNS ( 208.67.222.222 ). Reboot the Kerio Control appliance to apply changes. B. Disable Reliability Detection via SSH If the UI is unresponsive or the filter

Hold down the key on your keyboard and click Status > System Health .

Method 3: Verify the License Status and Web Filter Activation Add the URL *

This troubleshooting guide explains why this error happens and provides step-by-step methods to fix it. Root Causes of the Error

The categorization database requires . If the partition is full: Disable Reliability Detection via SSH Hold down the

SSL/TLS connections to update servers fail if your system clock is wrong. Go to > Advanced Options > Time Server . Enable NTP synchronization. Ensure the Time Zone matches your actual location. 5. Check Proxy Settings

If Kerio Control is behind another upstream firewall, create an explicit allow rule to those destinations.

Kerio Control is a popular, robust unified threat management (UTM) firewall designed for small and medium-sized businesses. A core component of its security suite is the , which allows administrators to control internet access by categorizing websites.