Kerio Control Web Filter Is Not Activated Categorization Is Disabled Fixed Today

: Often, a simple service restart or hardware reboot forces a re-authentication with the license servers. Verify DNS Settings : Ensure Kerio Control can resolve external hosts. Use the Google Public DNS (8.8.8.8) or Cloudflare DNS (1.1.1.1) as forwarders. Root Causes & Solutions 1. Expired Authorization Token (Zvelo)

: Create a rule allowing traffic from the Firewall itself to: prod-update.kerio.com register.kerio.com control-update.kerio.com support.keriocontrol.gfi.com Verification Steps Navigate to Content Filter Applications and Web Categories and enter any website (e.g., google.com

He pinged the Kerio update servers. The packets returned instantly. : Often, a simple service restart or hardware

Run the following command: /etc/boxinit.d/60kerio-webfilter restart Verify the status in the UI after a few minutes. 4. Final Verification

If you would like to troubleshoot further, let me know the of your Kerio Control firewall, or paste any specific error codes from your Error Log . Share public link Root Causes & Solutions 1

If the trial period (30 days) has ended and a specific license was not purchased, categorization will be disabled. Manual Enablement: Content Filter Applications and Web Categories and ensure Enable Kerio Control Web Filter is checked. License Refresh: If you recently renewed, you may need to perform an offline registration by downloading the license file from the Kerio Product Registration page 4. Checking the Logs If the status persists, check the Error logs

Log back into the web interface and wait 5–10 minutes for the firewall to re-download clean categorization databases. Step 5: Update to the Latest Kerio Control Firmware Run the following command: /etc/boxinit

This disables the "Reliability detection" feature that turns off the filter during ISP instability. support.keriocontrol.gfi.com 3. License & Maintenance Expiry The Web Filter is a subscription-based module. If your Software Maintenance has expired, the module may deactivate. License Tile to verify the status.

| Symptom | Likely Fix | |---------|-------------| | Web filter not activated | Apply/renew Security Pack license | | Categorization disabled | Trigger manual DB update; fix internet access to update server | | Works for HTTP but not HTTPS | Enable SSL inspection | | Works for some users, not others | Check traffic rule web filter setting | | Never works after fresh install | Reinstall web filter component |