Kerio Control Web Filter Is Not Activated Categorization Is Disabled Hot

Resolving Web Filter Invalid authorization failures - KerioControl

Ensure your Kerio Control Web Filter license is active. Without a valid subscription, the module defaults to a trial state and eventually disables itself.

: Some ISPs limit the frequency of DNS requests, which can trigger reliability errors since the web filter makes numerous requests to zvelo.com for categorization. Troubleshooting & Fixes

: If you use Google DNS (8.8.8.8), the filter might fail due to "Invalid Authorization" tokens. It is recommended to use Cloudflare (1.1.1.1) (208.67.222.222) for better compatibility with Zvelo. Verify Licensing