Kerio Control Web Filter Is Not Activated Categorization Is Disabled Work Review

The error "Kerio Control Web Filter is not activated" typically occurs when the firewall loses communication with its categorization servers (Zvelo), or if the special module license has lapsed. Common Fixes Check Licensing:

If you are encountering the error "Kerio Control Web Filter is not activated; categorization is disabled," your firewall has likely triggered a safety mechanism that pauses web filtering when it cannot reliably reach the categorization servers. The error "Kerio Control Web Filter is not

Change your Custom DNS Forwarders to reliable providers like Cloudflare (1.1.1.1) or OpenDNS (208.67.222.222) instead of Google's DNS. Expired Tokens : Zvelo tokens expire every 21

Expired Tokens: Zvelo tokens expire every 21 days; if they can't refresh due to blocked traffic, categorization fails. categorization is disabled

Step 2: Manually Enable Categorization

Even with a valid license, the categorization engine may be disabled. Go to Configuration → Content Filtering → Web Filter.