Kerio Control Web Filter Is Not Activated Categorization Is Disabled Hot Official

If the web filter remains disabled after an hour and DNS settings are correct, you can manually reset the reliability detection via SSH: to your Kerio Control console.

After modifying your DNS settings, it is highly recommended to reboot the Kerio Control firewall so the changes take effect system-wide. 3. Resolve Zvelo "Invalid Authorization" Errors

The most common cause of this error is an expired or unregistered Kerio Control Web Filter (formerly Sophos, now Kerio Control Web Filter) license extension. Navigate to Dashboard . Locate the License tile. If the web filter remains disabled after an

Navigate to . Click Check Now .

Kerio Control Web Filter (URL filtering, content categorization, web policy rules based on categories) Resolve Zvelo "Invalid Authorization" Errors The most common

Navigate to Content Filter > Applications and Web Categories . Use the built-in Test URL tool to query a few known addresses (e.g., a sports website or a news network). If the firewall returns a correct, instantaneous category classification, your web filter is completely fixed.

Kerio Control needs to "call home" to categorize websites in real-time. If your firewall cannot reach the Kerio update servers, it will disable the filter to prevent network lag. Go to > System Health . Navigate to

After installing a new license, restart the Kerio Control Filtering Service via Status → Services .

Check the box for and click Edit (or Add ). Set the DNS name field to exactly *.zvelo.com .

: After updating DNS settings, a reboot is often necessary to refresh the token transfer from Kerio internal servers. 4. Verify License Status

Inside the WebAdmin interface, navigate to > Applications and Web Categories .