Getting connection timeOut error for "WebSocket Open Connection" sampler

Thread Name: web 1-1 Sample Start: 2019-09-11 14:15:47 IST Load time: 19992 Connect Time: 0 Latency: 0 Size in bytes: 0 Sent bytes:0 Headers size in bytes: 0 Body size in bytes: 0 Sample Count: 1 Error Count: 1 Data type ("text"|"bin"|""): *Response code: Websocket I/O error Response message: WebSocket I/O error: connect timed out*

SampleResult fields: ContentType: DataEncoding: null