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

The error message "Kerio Control Web Filter is not activated" "Categorization is disabled"

Fix: It is recommended to use Cloudflare or OpenDNS (208.67.222.222) as custom DNS servers for the *.zvelo.com domains used for categorization. The error message "Kerio Control Web Filter is

Step 9: Update Kerio Control to Latest Version

Older versions (pre-9.3.5 or 10.x early builds) had known issues with GFI’s cloud categorization endpoints migrating to new TLS ciphers. Configuration errors : Misconfiguration of the Kerio Control

Note: If your 30-day trial has expired, these options will be greyed out and unavailable until a valid license is applied. Note: If your 30-day trial has expired, these

Need further help?
Visit the GFI Support Portal or search the Kerio Control Knowledge Base. For real-time troubleshooting, check the #kerio-control channel on unofficial networking Discord servers.

  1. Stop the Web Filter service:

    Kerio Control — Web Filter Not Activated / Categorization Disabled (Hot Issue)

    Summary

    Kerio Control’s web content filtering is failing: the Web Filter service shows “not activated” and URL categorization is disabled, causing unfiltered web access. This is a high-priority (hot) problem because it bypasses policy enforcement and exposes users to inappropriate or malicious content.

    1. Missing or expired license – The Web Filter module requires a valid subscription.
    2. Categorization service not started – The background service that downloads and applies URL categories is stopped.
    3. No internet access on the Kerio Control host – The appliance cannot contact Kerio’s cloud categorization servers.
    4. DNS resolution failure – The server cannot resolve licensing.kerio.com or categorization.kerio.com.
    5. Outdated Web Filter database – The local categorization database is missing or corrupted.

The error message "Kerio Control Web Filter is not activated" "Categorization is disabled"

Fix: It is recommended to use Cloudflare or OpenDNS (208.67.222.222) as custom DNS servers for the *.zvelo.com domains used for categorization.

Step 9: Update Kerio Control to Latest Version

Older versions (pre-9.3.5 or 10.x early builds) had known issues with GFI’s cloud categorization endpoints migrating to new TLS ciphers.

Note: If your 30-day trial has expired, these options will be greyed out and unavailable until a valid license is applied.

Need further help?
Visit the GFI Support Portal or search the Kerio Control Knowledge Base. For real-time troubleshooting, check the #kerio-control channel on unofficial networking Discord servers.

  1. Stop the Web Filter service:

    Kerio Control — Web Filter Not Activated / Categorization Disabled (Hot Issue)

    Summary

    Kerio Control’s web content filtering is failing: the Web Filter service shows “not activated” and URL categorization is disabled, causing unfiltered web access. This is a high-priority (hot) problem because it bypasses policy enforcement and exposes users to inappropriate or malicious content.

    1. Missing or expired license – The Web Filter module requires a valid subscription.
    2. Categorization service not started – The background service that downloads and applies URL categories is stopped.
    3. No internet access on the Kerio Control host – The appliance cannot contact Kerio’s cloud categorization servers.
    4. DNS resolution failure – The server cannot resolve licensing.kerio.com or categorization.kerio.com.
    5. Outdated Web Filter database – The local categorization database is missing or corrupted.