测试某项目的时候，需要测试自动扫描服务器节点的功能，结果发现无论安装哪个版本的客户端程序，都不能得到返回集。
使用其他的计算机又可以，经过仔细排查：发现当前的计算机安装了network moniter driver, 于是尝试将之卸载。
问题得以解决。
备注：network moniter driver
Network Monitor is designed primarily to monitor the network traffic flowing in and out of the machine that it is running on (although the full version does allow you to monitor an entire network segment).