Kerio Control relies on an external database provided by Zvelo to categorize websites dynamically in real time. Whenever an endpoint requests a webpage, the firewall checks that URL against this cloud-hosted master list.
The Kerio Control Web Filter requires a specific license module. If the license expires or you are using a trial version past 30 days, categorization will be disabled automatically.
Ensure the value v4.url.zvelo.com is correctly set in the configuration file located at /opt/kerio/winroute/winroute.cfg .
在确保许可证和时间都正确无误后，我们来进行一些基本的功能激活检查： Kerio Control relies on an external database provided
：
Log in to your Kerio Control Administration panel and navigate to Configuration > Advanced > License .
your Kerio Control appliance to force a clean token check. 2. Disable Reliability Detection via SSH If the license expires or you are using
If the web filter remains disabled after an hour and DNS settings are correct, you can manually reset the reliability detection via SSH: to your Kerio Control console.
What of Kerio Control are you running?
You can disable this "Reliability detection" via the GFI Support command-line fix to prevent automatic shutdowns during minor connectivity blips. your Kerio Control appliance to force a clean token check
: The web filter should return to normal operation immediately after the subsystem service restarts. Method 2: Configure Custom DNS Forwarding for Zvelo
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.