Kerio Control Web Filter Is Not Activated Categorization Is Disabled Hot -
rating servers or detects a reliability issue with the DNS response support.keriocontrol.gfi.com Immediate Fixes Restart the Engine
If the error logs show frequent DNS response timeout warnings, the firewall's internal reliability detection may be turning off the web filter prematurely. You can turn off this reliability check through the command line so the filter stays active during minor connection drops. First, enable SSH access on the device: Open the Kerio Control administration interface .
Ensure the status box shows an active green state without error banners. rating servers or detects a reliability issue with
If your Web Filter continues to display as disabled after attempting the above troubleshooting steps, it may indicate a deeper routing issue or a firewall malfunction. If you would like, tell me more about your system:
: Kerio uses an external database from Zvelo to categorize websites. The system uses key tokens that expire every 21 days. If Google Public DNS or restrictive ISP servers handle these specific requests, the validation sequence frequently fails. Ensure the status box shows an active green
How to Fix the "Kerio Control Web Filter is Not Activated Categorization is Disabled" Error
After completing the steps above:
: An incorrectly set system date and time on the Kerio Control server can break HTTPS/TLS certificate validation, preventing the license validation and communication with cloud-based filtering services. A failed DNS lookup for the DiaServerUrl (e.g., v4.url.zvelo.com ) can also cause the authorization token (which expires every 21 days) to fail.
: If the system date and time on the firewall appliance drift, the SSL/TLS handshakes needed to renew security licenses or fetch URL updates will fail. Step-by-Step Resolution Strategies Method 1: Bypass the Reliability Detection Check via SSH The system uses key tokens that expire every 21 days
Use the tool to see if categorization is live again. If you'd like, I can help you: