Kerio Control Web Filter Is Not Activated Categorization Is Disabled Fixed Jun 2026

The Kerio Control Web Filter is an add-on subscription. If your Software Maintenance Agreement (SMA) or specific Web Filter license expires, the service shuts down.

An expired license or trial period (30 days) will automatically disable the Web Filter module.

If the license is valid but showing unactivated, go to . The Kerio Control Web Filter is an add-on subscription

Ensure your license includes the Web Filter module, as it reverts to a trial and disables automatically after 30 days without a valid key. Use the Configuration Assistant Update license info to refresh your status. support.keriocontrol.gfi.com Checklist for Persistent Issues Check Time & Connectivity:

The Web Filter is a separate licensed module. If the license is missing or expired, the options will be greyed out. If the license is valid but showing unactivated, go to

If temporary network drops frequently trigger this issue, you can configure Kerio Control via the Secure Shell (SSH) to stop disabling the filter when queries time out. Step 1: Enable SSH on Kerio Control

Inspect outbound connectivity and firewall rules support

Follow these solutions in order, starting with the quickest validation steps. 1. Verify License Status and Force a Sync

Kerio Control must communicate with external servers to retrieve website categorizations. Problems with your ISP or DNS are a very common cause of the categorization is disabled error.

The "web filter is not activated" error in Kerio Control is a solvable problem. Most of the time, the fix involves either ensuring your license is up-to-date, adjusting your DNS settings, or applying the SSH command to disable reliability detection.

[Kerio Control Firewall] --(DNS Queries Overload/Blocked)--> [ISP DNS Server] | (Dropped Request) | [Cloud Database (Zvelo)]