Kerio Control Web Filter Is Not Activated Categorization Is Disabled Hot

If a new version is available, back up your current configuration and upgrade immediately.

The Web Filter is a premium add-on component. If you run an unregistered or trial deployment, the component turns itself off 30 days after installation. Open the administrator dashboard. Go to > License Details . If a new version is available, back up

: When active, the filter provides robust, color-coded rule management and automated blocking of malicious sites, ads, and peer-to-peer networks. Open the administrator dashboard

This specific error in Kerio Control—where the web filter is shown as not activated and categorization is disabled— typically stems from connectivity or authorization issues with the third-party categorization service, . Common Causes This specific error in Kerio Control—where the web

Using standard public DNS (like Google 8.8.8.8) can sometimes lead to "Invalid Authorization" errors with the classification service.

The message indicates Kerio Control’s web filtering isn’t functioning because URL categorization is disabled or unreachable, which disables policy-based filtering and reporting. Investigate licensing, connectivity to categorization services, configuration, system time/certificates, software version, and resource usage; then re-enable the feature, restore connectivity, renew licenses, rebuild caches, update software, and verify operation. If unresolved, collect logs and contact vendor support.

To permanently resolve the error and restore secure web categories, execute the following technical deployment steps in your administration infrastructure: 1. Configure Custom DNS Forwarding Rules