Unable to execute HTTP request: Connect to sts.us-east-1.amazonaws.com:443 [sts.us-east-1.amazonaws.com/209.54.177.185] failed: Connect timed out

Sometimes I am getting the below error from sts while API call. I am not able to find the root cause of this error.

Unable to execute HTTP request: Connect to sts.us-east-1.amazonaws.com:443 [sts.us-east-1.amazonaws.com/209.54.177.185] failed: Connect timed out

Stack Trace JSON

{
  "message": "Unable to execute HTTP request: Connect to sts.us-east-1.amazonaws.com:443 [sts.us-east-1.amazonaws.com/209.54.177.185] failed: Connect timed out",
  "source": "JavaSDK",
  "stackTrace": "software.amazon.awssdk.core.exception.SdkClientException$BuilderImpl.build(SdkClientException.java:102)",
  "cause": {
    "message": "Connect to sts.us-east-1.amazonaws.com:443 [sts.us-east-1.amazonaws.com/209.54.177.185] failed: Connect timed out",
    "source": "JavaSDK",
    "stackTrace": "org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:151)",
    "cause": {
      "message": "Connect timed out",
      "source": "JavaSDK",
      "stackTrace": "java.base/sun.nio.ch.NioSocketImpl.timedFinishConnect(NioSocketImpl.java:546)\njava.base/sun.nio.ch.NioSocketImpl.connect(NioSocketImpl.java:597)",
      "cause": null,
      "applicationFailureInfo": {
        "type": "java.net.SocketTimeoutException",
        "nonRetryable": false,
        "details": null
      }
    },
    "applicationFailureInfo": {
      "type": "org.apache.http.conn.ConnectTimeoutException",
      "nonRetryable": false,
      "details": null
    }
  },
  "applicationFailureInfo": {
    "type": "software.amazon.awssdk.core.exception.SdkClientException",
    "nonRetryable": false,
    "details": null
  }
}