Kerio Control Web Filter Is Not Activated Categorization Is Disabled Fixed ((top)) May 2026

Sometimes the local database or cache becomes corrupted, leading the system to believe the service is inactive. Navigate to . Uncheck Enable Kerio Control Web Filter . Click Apply . Wait 30 seconds, re-check the box, and click Apply again.

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

Ensure that SSL inspection on a parent device isn't interfering with the Kerio appliance's encrypted handshake with GFI/Kerio servers. 5. Correct System Time and Date Sometimes the local database or cache becomes corrupted,

GFI/Kerio frequently updates the URLs used for categorization and licensing. If you are running a very old version of Kerio Control, it may be trying to contact a retired server. Go to .

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 . Click Apply

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

Go to Status > System Health and use the Debug or Ping tool (or SSH into the box). Try to ping google.com or ://kerio.com . Summary Checklist Potential Cause Renew SMA or Web

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

By following these steps, you should see the status change to and your categorization rules will resume functioning immediately.