There are typically three reasons why the Web Filter and its categorization engine fail to activate:
Is your software maintenance agreement () currently active?
Hold down the key on your keyboard and click Status > System Health . There are typically three reasons why the Web
Here are the step-by-step solutions to resolve the "Web Filter is not activated" error, ordered from simplest to most advanced. 1. Enable/Re-enable the Web Filter License First, verify that the license is active. Navigate to in the Webadmin. Go to the Applications and Web Categories tab.
Go to . Ensure DNS forwarding is configured properly and that the firewall itself can resolve external queries. Step 3: Check Time Synchronization (NTP) Go to the Applications and Web Categories tab
Hold Shift and navigate to Status > System Health , then click Enable SSH . Connect to the console using a tool like Putty. Execute the following commands:
The Web Filter license has expired, or the 21-day Zvelo authorization token has failed to renew. ordered from simplest to most advanced.
Web Filter categorization disabled. Serial number: ko-197974
The realization hit him—the system clock. Because of a recent power flick, the Kerio appliance had lost sync with the NTP server. It thought the year was 2010. The modern security certificates being sent by the Kerio cloud were "from the future" and therefore rejected as invalid. Mark didn't hesitate. He took three quick steps:
He dove into the logs. Deep in the debug messages, he saw a recurring error: “Unable to verify SSL certificate for update server.”