Kerio Control Web Filter Is Not Activated Categorization Is Disabled Hot High Quality Site

The message "Web Filter categorization is disabled" usually occurs when Kerio Control loses its connection to the

/opt/kerio/mailserver/kerio-categorization status
/opt/kerio/mailserver/kerio-categorization start

ping categorization.kerio.com
nslookup categorization.kerio.com

The Most Common Causes (Ranked by Frequency)

Through years of troubleshooting Kerio installations, these five culprits account for 99% of these errors: The message "Web Filter categorization is disabled" usually

If the error is caused by "Invalid Authorization," it is usually due to an expired or blocked security token: support.keriocontrol.gfi.com Configure DNS Forwarding : Ensure your firewall can resolve *.zvelo.com GFI Support recommends using stable DNS servers like Cloudflare (1.1.1.1) OpenDNS (208.67.222.222) specifically for these requests to avoid timeouts. Check the Configuration File : Verify that DiaServerUrl v4.url.zvelo.com /opt/kerio/winroute/winroute.cfg ping categorization

2. Verify Categorization Server Connectivity

• In admin interface: Diagnostics → Test Network Connection.
• Test connectivity to webfilter.kerio.com on TCP 443.
• Also check licensing.kerio.com and download.kerio.com.