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

Look at the or Primary DNS Server configured for the firewall firewall engine.

Poor DNS performance often causes "Invalid Authorization" errors. Configuring reliable external DNS servers for Zvelo-specific traffic is a primary fix. Navigate to section in the Kerio Control Web Admin . Enable Custom DNS forwarding .

Click the button and accept the security warning. Look at the or Primary DNS Server configured

There are several reasons why the Kerio Control web filter may not be activated, and categorization is disabled. Some of the common causes include:

Ensure "Kerio Control Web Filter" is checked in Content Filter settings. Navigate to section in the Kerio Control Web Admin

The rule should look like: Source: Firewall -> Destination: Internet -> Service: Any (or HTTP/HTTPS/DNS) -> Action: Allow .

Disclaimer: Some steps involve using the SSH console, which can alter system configuration. Ensure you have a backup of your configuration before making changes. There are several reasons why the Kerio Control

from the Kerio Control machine itself:

Click to force an online synchronization with GFI servers.

If the license is valid but showing unactivated, go to .