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

If the web filter is enabled but still not blocking websites, you may need to create a specific rule for the URLs or categories you want to restrict.

: Access the SSH console and ensure the correct DiaServerUrl ( v4.url.zvelo.com ) is in /opt/kerio/winroute/winroute.cfg .

If you are still experiencing issues with your Web Filter reactivation, please let me know: What of Kerio Control you are currently running?

Are you seeing any specific in the Kerio Control Error Log when you try to enable the filter?

The final command in this process will restart the entire Kerio Control service, temporarily disrupting all internet traffic on your network. Therefore, you should only perform this procedure outside of business hours or during a scheduled maintenance window. If the web filter is enabled but still

The most common cause is an expired, unassigned, or trial-expired license for the Web Filter service.

: Restart the Kerio Control appliance after making DNS changes. Fix 2: Disable Reliability Detection via SSH

"Invalid Authorization" errors can occur when using Google's DNS. It is recommended to use Cloudflare (1.1.1.1) OpenDNS (208.67.222.222) as custom DNS forwarding servers for *.zvelo.com Manual Re-activation Content Filter Applications and Web Categories Enable Kerio Control Web Filter is checked. to force a refresh. Verify License Status

typically occurs when the firewall detects a loss of reliability in reaching the categorization servers or if there is an authorization failure with the third-party service ( Common Causes DNS Reliability Check Failure Are you seeing any specific in the Kerio

Set your primary DNS to 8.8.8.8 (Google) or 1.1.1.1 (Cloudflare).

What specific of Kerio Control are you running? Are you seeing any specific error codes in the Warning or Error logs? If you want to check your system logs via the terminal, I can provide the exact SSH commands to diagnose the cloud connection.

If the license is valid but categorization remains disabled, your firewall may be unable to resolve the categorization server hostnames.

┌────────────────────────────────────────────────────────┐ │ Kerio Control DNS Panel │ ├────────────────────────────────────────────────────────┤ │ [X] Enable custom DNS forwarding │ │ │ │ DNS Name ──► *.zvelo.com │ │ DNS Server(s) ──► 1.1.1.1, 208.67.222.222 │ └────────────────────────────────────────────────────────┘ Navigate to the section under the configuration menu. The most common cause is an expired, unassigned,

By methodically working through the steps in this guide, you can quickly restore the functionality of your web filter and ensure your network security policies are enforced once again.

Ensure "Kerio Control Web Filter" is checked in Content Filter settings.

The Web Filter uses for categorization. If your DNS cannot resolve *.zvelo.com , the filter disables itself for reliability.

key token (which typically expires after 21 days) or incorrect DNS forwarding settings. License Issues