Kerio Control Web Filter Is Not Activated Categorization Is Disabled Fixed |verified| May 2026

Toggle the Web Filter "Enable" checkbox to reset the connection.

Are you seeing any specific in the Kerio Control Error Log when you try to enable the filter? Toggle the Web Filter "Enable" checkbox to reset

Check for updates and ensure you are running the most recent build compatible with your license. Summary Checklist Potential Cause Renew SMA or Web Filter subscription. Time Sync Issue Enable NTP and verify the correct Time Zone. DNS Failure Set Kerio to use 8.8.8.8 for system resolution. Server Timeout Summary Checklist Potential Cause Renew SMA or Web

The Kerio Control Web Filter is a premium add-on service powered by Cyren (or GFI, depending on your version). It requires a valid, active subscription. Go to Status > License Details . Server Timeout The Kerio Control Web Filter is

If this fails, you may need to clear the cache via the console by deleting the contents of the /var/winroute/webfilter/ directory (advanced users only). 4. Firewall Rules and Port Access

Ensure your Kerio Control is using reliable DNS servers (like 8.8.8.8 or 1.1.1.1) under Configuration > DNS . 3. Clear the Web Filter Cache