Kerio Control Web Filter Is Not Activated Categorization Is Disabled Work Info

If the Web Filter is enabled but remains in a disabled state, check your DNS settings and internet connectivity.

Are you using a , a virtual machine , or Kerio Control box ?

Click (or re-register the current one).

If your license has expired, you must renew it through your vendor. After obtaining a new license file:

The web filter relies on security tokens transferred from Kerio backend engines. These tokens expire every . If your firewall cannot reach v4.url.zvelo.com due to restrictive custom DNS forwarding servers (such as certain Google DNS configurations), authorization fails and categorization deactivates. 3. Subscription and License Expiration If the Web Filter is enabled but remains

Navigate to . Check the box for Synchronize time with NTP server . Input a reliable NTP server (e.g., pool.ntp.org ). Click Apply and then click Synchronize Now . Verify the current time matches your actual local time. 4. Force License and Web Filter Reactivation

While it's essential to activate the Web Filter and enable categorization, there are some workarounds that organizations can implement to mitigate the risks: If your license has expired, you must renew

This indicates that the Kerio Control appliance cannot reach the web categorization servers.

A sample warning log entry may appear as: If your firewall cannot reach v4