Seeing java.net.ConnectException: Connection timed out in EAP / JWS logs

Issue

• Unable to connect database server from JWS server and seeing Caused by: java.net.ConnectException: (Connection timed out)at log.

• Calls to external web services are causing the error Caused by: java.net.ConnectException: Connection timed out. The error is intermittent, in our tests occurs only in this server.

    2019-08-20 07:38:19,468 SEVERE [javax.enterprise.resource.webcontainer.jsf.application] (default task-27) Error Rendering View[/context/main.xhtml]: javax.faces.FacesException: javax.el.ELException: /context/page.xhtml @639,178 value="#{queryMB.viewImage(file)}": javax.ws.rs.ProcessingException: RESTEASY004655: Unable to invoke request
    at javax.faces.component.UIComponentBase$AttributesMap.get(UIComponentBase.java:2415)
    ...
    Caused by: java.net.ConnectException: Connection timeout (Connection timed out)
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    at java.net.Socket.connect(Socket.java:589)
    at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:117)
    at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:177)
    at org.apache.http.impl.conn.ManagedClientConnectionImpl.open(ManagedClientConnectionImpl.java:304)
    at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:611)
    at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:446)
    at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:883)
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:55)
    at org.jboss.resteasy.client.jaxrs.engines.ApacheHttpClient4Engine.invoke(ApacheHttpClient4Engine.java:283)
    ... 150 more