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

A broken security handshake prevents the license module from activating the classification engine.

Restart the winroute service: /etc/boxinit.d/60winroute restart .

Examine the active modules listed under the summary component.

这篇文章将为您详细拆解导致该问题的四大主要原因，并提供一套从基础到高级的完整故障排查与解决方案，帮助您快速恢复网络安全防护。 A broken security handshake prevents the license module

In most configurations, this leads to either:

If the issue persists, check for any hotfixes or updates for Kerio Control. GFI (the company behind Kerio) periodically releases updates and hotfixes that can resolve known issues.

| Cause | Description | |-------|-------------| | | Kerio Control Web Filter requires a valid license (subscription). If expired, categorization is disabled. | | No internet access from Kerio Control | The filter needs to contact Kerio’s cloud categorization servers. Without WAN/DNS access, it fails. | | Web filter service not running | The kerio.webfilter service may be stopped or crashed. | | Misconfiguration in admin interface | Web filter is manually disabled under Configuration → Web Filter → Status . | | DNS resolution failure | Categorization engine cannot resolve categories.kerio.com or related update servers. | | Proxy / upstream firewall blocking | Outbound HTTPS traffic to Kerio’s licensing/categorization APIs is blocked. | | Corrupted local categorization database | Database files may be corrupt, causing the service to disable itself. | | Time/date sync issue | Incorrect system time can break license validation and SSL handshakes with Kerio’s servers. | If expired, categorization is disabled

The most basic, yet frequently overlooked, cause for a disabled web filter is licensing. The Kerio Control Web Filter requires a specialized premium subscription module.

在这种情况下，我们需要通过 SSH (Secure Shell) 工具连接到防火墙的底层操作系统，并执行两条指令来关闭这个“过于谨慎”的检测机制。

How to Fix the "Kerio Control Web Filter is Not Activated Categorization is Disabled" Error | The most basic

Occasionally, you might spot an Invalid Authorization entry within your Kerio Control error logs. This specifically points to an expired Zvelo key token, which natively expires and attempts to refresh every 21 days.

This typically happens because:

Under the or custom rule tables, map queries destined for *.zvelo.com exclusively to reliable, ultra-low-latency public servers like Cloudflare or OpenDNS: Cloudflare : 1.1.1.1 OpenDNS : 208.67.222.222 and 208.67.220.220 Click Apply .

Click and check if the current time matches your actual local time exactly. 4. Configure Traffic Rules for Kerio Updates

To permanently resolve the error and restore secure web categories, execute the following technical deployment steps in your administration infrastructure: 1. Configure Custom DNS Forwarding Rules