Kerio Control Web Filter Is Not Activated Categorization Is Disabled Hot Jun 2026

: The Web Filter requires a separate, active license. If your license has expired or is invalid, the module reverts to trial mode and eventually disables itself.

The error typically indicates a licensing, connectivity, or service state issue. Following the diagnostic and resolution steps above will restore category-based web filtering. If unresolved, contact GFI/Kerio support with debug logs and license file details.

If the service is stuck in a frantic "hot" retry loop, force a reset: : The Web Filter requires a separate, active license

Also test the license validation server:

Is your license showing as or Expired on the dashboard? Following the diagnostic and resolution steps above will

Ensure the module is actually enabled in the UI and that your license is active. The Web Filter is a separate module; if your 30-day trial or specific license has expired, the categorization options will automatically grey out.

If the issue persists, check for any hotfixes or updates for Kerio Control. GFI (the company behind Kerio) periodically releases updates and hotfixes that can resolve known issues. Ensure the module is actually enabled in the

for a specific version of Kerio Control, or do you need help verifying your license status

: Go to the Applications and Web Categories tab, enter an external web address into the test field, and select Test URL . A successful category return confirms your cloud communication is working. If youSerial number: ko-197974

：如果许可证已经续期但依然激活失败，可能是因为该许可证的“下载次数限制”已用完。这种情况需要联系 GFI 技术支持部门协助您在后端增加下载限额。