jenkins发布SSH错误：连接超时

Question

当我单击“测试配置”按钮时，提示正在测试中，最后一个是

jenkins.plugins.publish_over.BapPublisherException: Failed to connect and initialize SSH connection. 
Message: [Failed to connect session for config [userName]. 
Message [java.net.ConnectException: Connection timed out: connect]]



environment: windows 10 
jenkins version: 2.60.3

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