Kerio Control Web Filter Is Not Activated Categorization Is Disabled Hot

The error message typically indicates a communication failure between your Kerio Control appliance and the external categorization servers (primarily Zvelo ). When this service fails, your content rules based on web categories (like "Social Networking" or "Malware") stop functioning, potentially leaving your network exposed. Common Root Causes

When you see or “Categorization is disabled” in Kerio Control (now GFI Kerio Control), it means the URL filtering feature cannot check websites against its cloud-based category database. Without categorization, the firewall cannot block or allow sites based on content type (e.g., social media, adult content, streaming).

Web Filter categorization disabled. Serial number: ko-197974 Without categorization, the firewall cannot block or allow

: Ensure the filter is toggled on under Content Filter > Applications and Web Categories in the administration interface. User Experience Impact

在深入到具体的解决方案之前，我们需要理解这一信息背后的含义。Kerio Control 是 GFI 公司推出的一款集路由、防火墙和 VPN 于一体的网络安全设备，主要用于中小型企业的互联网接入管理。在 2022 年 10 月，GFI 公司收购了 Kerio Control 的相关业务。 Without categorization, the firewall cannot block or allow

Execute the database modification command to disable the reliability checker:

While categorization is broken, you can still filter by: Without categorization, the firewall cannot block or allow

Low firewall disk space blocks license verification files from saving locally, resulting in sudden module deactivation.

If the filter has disabled itself due to perceived unreliability (often triggered by DNS timeouts), you can force it back on using these SSH commands via the Kerio Control console Access the directory cd /opt/kerio/winroute Disable reliability detection ./tinydbclient "update SiteFilter set DetectReliability=0" Restart the service /etc/boxinit.d/60winroute restart Fix DNS and Authorization Issues