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.
Sometimes a full restart resolves stuck services:
rm -rf /var/kerio/kerio-control/cache/urlfilter/ The "Kerio Control Web Filter is not activated;
Follow these steps in order to restore functionality.
Some possible causes of this issue include: Sometimes a full restart resolves stuck services: rm
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If the appliance is connected, from your MyKerio account. Reboot the firewall. Re-register the appliance to your MyKerio dashboard. If you share with third parties, their policies apply
If the underlying infrastructure is functioning perfectly, ensure the software layer hasn't automatically turned off the engine.
The Web Filter module has exceeded its 30-day trial or the subscription has expired. Step-by-Step Resolution Strategies 1. Fix DNS Resolution and Add Custom Forwarding
Go back to your web admin panel. The firewall will automatically start downloading a clean, updated categorization database. 6. Update Kerio Control to the Latest Version