Via Admin Interface:
: Using certain DNS servers (like Google's) for all traffic can sometimes interfere with Zvelo's authorization tokens. in the admin interface. Custom DNS Forwarding *.zvelo.com Cloudflare (1.1.1.1) or (208.67.222.222). the Kerio Control appliance after making this change. Check Winroute Config : Ensure the DiaServerUrl is correctly set. /opt/kerio/winroute/winroute.cfg , verify that the value is v4.url.zvelo.com Activation Verification Navigate to Content Filter Applications and Web Categories Enable Kerio Control Web Filter is checked. Test a URL in the field to see if it provides a category. License Issues Via Admin Interface: : Using certain DNS servers
The "Kerio Control Web Filter is not activated; categorization is disabled" error is a critical sign that your network's content filtering is down. While it can be triggered by various factors, the most common causes are expired licenses, DNS misconfigurations, or system resource issues. By systematically following this guide—starting with a license check, verifying system health, and then moving to more advanced diagnostics like SSH commands—you can restore your web filter's functionality and ensure your organization's internet usage policies are once again enforced. the Kerio Control appliance after making this change
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. Test a URL in the field to see if it provides a category
(208.67.222.222). Avoid using Google DNS (8.8.8.8) for Zvelo lookups as it can cause authorization failures support.keriocontrol.gfi.com Restart the System
Navigate to Content Filter > Applications and Web Categories . Use the built-in Test URL tool to query a few known addresses (e.g., a sports website or a news network). If the firewall returns a correct, instantaneous category classification, your web filter is completely fixed.
