Share these lines on Kerio Control Forums for specific advice.
/opt/kerio/mailserver/kerio-categorization status /opt/kerio/mailserver/kerio-categorization start
防火墙本身需要能访问外部网络才能工作，这是一个很容易被忽视的关键点。 Share these lines on Kerio Control Forums for
: Ensure the DiaServerUrl in /opt/kerio/winroute/winroute.cfg is set correctly to v4.url.zvelo.com .
You need a valid maintenance contract to upgrade. Share these lines on Kerio Control Forums for
The service will re-download category data from GFI (may take 5–15 minutes).
The local Internet Service Provider blocks rapid DNS requests sent to classification servers. Share these lines on Kerio Control Forums for
对于具备一定技术能力的用户，当常规方法无效时，可以尝试通过 Kerio Control 的 API 接口来强制重建 Web 过滤器的连接状态。这相当于一个更深入的、由指令驱动的系统唤醒过程。