Kerio Control Web Filter Is Not Activated Categorization Is Disabled Fixed ((full)) Site
Ensure there is a rule allowing the itself to access the Internet via any service (or at least HTTP/HTTPS/DNS).
If "Update Now" hangs or fails, the local SQLite database may be locked or damaged.
Firewall rules, ISP outages, or deep packet inspection (DPI) are blocking traffic to the cloud filtering service. Steps to Fix: "Kerio Control Web Filter is Not Activated" Follow these steps in order to resolve the issue. 1. Verify License and Subscription Status Ensure there is a rule allowing the itself
With the reliability check silenced and the DNS queries flying through, the status indicator finally turns green. The filter is active, categorization is restored, and the network is back under control. Are you seeing a specific message or a DNS timeout error in your Kerio Control console? AI responses may include mistakes. Learn more Using Kerio Control Web Filter
After applying the fixes, you must ensure the filter itself is enabled in the settings. Steps to Fix: "Kerio Control Web Filter is
The Kerio Control appliance must be able to resolve the addresses of the backend categorization servers. If the firewall itself cannot resolve DNS, the Web Filter will fail to activate.
No categorization data appears in traffic logs. The filter is active, categorization is restored, and
The Web Filter module license is either missing, mismatched, or expired. Step-by-Step Fixes Fix 1: Modify the Reliability Check via SSH
: Avoid using Google DNS (8.8.8.8) as your primary forwarder for this service. Instead, set Cloudflare (1.1.1.1) or OpenDNS (208.67.222.222) as custom DNS servers for the *.zvelo.com domain.
If the system time on your Kerio Control device differs significantly from the actual time, the SSL certificate verification for the licensing server will fail. Go to . Ensure Synchronize with NTP server is enabled. Verify the time matches current local time. Step 4: Check Firewall Rules (Blocked Outbound)