Kerio Control Web Filter Is Not Activated Categorization Is Disabled Hot [better]

Ensure the DiaServerUrl value in your configuration is set to v4.url.zvelo.com .

When Kerio Control evaluates web traffic, it checks a dynamic global database to categorize and either allow or block URLs based on your internal rules. If this connection breaks, the firewall disables categorization to keep internet traffic flowing, rather than blocking the web entirely.

Navigate to: → License Information (or Configuration → Licenses ). Ensure the DiaServerUrl value in your configuration is

I can provide specific SSH commands or diagnostic log paths based on your setup. Share public link

The "categorization disabled" state is often a reliability safety measure triggered after multiple failed DNS queries. : Go to DNS in the admin interface. Enable custom DNS forwarding for *.zvelo.com . Navigate to: → License Information (or Configuration →

Kerio Control must communicate with external cloud servers to categorize websites and verify your subscription status. If your firewall cannot reach these servers, it disables categorization. Allow Outbound Ports

Start with and Step 5 (DNS) – these resolve the majority of "hot" support tickets. For persistent issues, enable debug logs and contact GFI support with the output. : Go to DNS in the admin interface

The error "Kerio Control Web Filter is not activated. Categorization is disabled" is almost always solvable by methodically checking . In 90% of cases, either a expired license, a local DNS misconfiguration, or a corrupted cache is to blame.

Navigate to > Applications and Web Categories and check Enable Kerio Control Web Filter .

: Go to Content Filter > Applications and Web Categories and add critical corporate business domains to the URL whitelist to bypass database checks entirely.

如果您的 Kerio Control 防火墙突然在 页面显示 "Kerio Control Web Filter is not activated, Categorization disabled" (Kerio Control 网页过滤器未激活，分类已禁用) 的提示，或者所有用户突然可以不受限制地访问网络，导致您的网络管理形同虚设，请不要慌张。这是一个在 Kerio Control 环境中比较常见的问题，尤其是当设备处于高负载状态或配置环境发生变化时。

Ensure the DiaServerUrl value in your configuration is set to v4.url.zvelo.com .

When Kerio Control evaluates web traffic, it checks a dynamic global database to categorize and either allow or block URLs based on your internal rules. If this connection breaks, the firewall disables categorization to keep internet traffic flowing, rather than blocking the web entirely.

Navigate to: → License Information (or Configuration → Licenses ).

I can provide specific SSH commands or diagnostic log paths based on your setup. Share public link

The "categorization disabled" state is often a reliability safety measure triggered after multiple failed DNS queries. : Go to DNS in the admin interface. Enable custom DNS forwarding for *.zvelo.com .

Kerio Control must communicate with external cloud servers to categorize websites and verify your subscription status. If your firewall cannot reach these servers, it disables categorization. Allow Outbound Ports

Start with and Step 5 (DNS) – these resolve the majority of "hot" support tickets. For persistent issues, enable debug logs and contact GFI support with the output.

The error "Kerio Control Web Filter is not activated. Categorization is disabled" is almost always solvable by methodically checking . In 90% of cases, either a expired license, a local DNS misconfiguration, or a corrupted cache is to blame.

Navigate to > Applications and Web Categories and check Enable Kerio Control Web Filter .

: Go to Content Filter > Applications and Web Categories and add critical corporate business domains to the URL whitelist to bypass database checks entirely.

如果您的 Kerio Control 防火墙突然在 页面显示 "Kerio Control Web Filter is not activated, Categorization disabled" (Kerio Control 网页过滤器未激活，分类已禁用) 的提示，或者所有用户突然可以不受限制地访问网络，导致您的网络管理形同虚设，请不要慌张。这是一个在 Kerio Control 环境中比较常见的问题，尤其是当设备处于高负载状态或配置环境发生变化时。

Related articles