Kerio Control Web Filter Is Not Activated Categorization Is Disabled Work May 2026

: A full disk can prevent the license file from saving. Use SSH to check disk space and clear cache files in /var/lib/firebase if necessary. 4. Troubleshooting Miscategorized or Blocked Sites

The Web Filter uses an external service (Zvelo) which requires a valid authorization token. These tokens expire every . If your DNS settings prevent the token from renewing, categorization will be disabled. : A full disk can prevent the license file from saving

The Web Filter requires a specific active license; without it, the module behaves as a trial and will automatically disable after 30 days. : A full disk can prevent the license file from saving

If the filter is activated but still blocking legitimate sites, you can bypass the categorization engine for specific URLs. Using Kerio Control Web Filter : A full disk can prevent the license file from saving