Spring Feign client cannot lookup the service url using service name

[patpro123]

I've taken the code from this repo, and tried to run with the Eureka server shared in the link here. But getting an error below. It seems the lookup of the server url from Eureka is failing. Is there anything I should be looking at? Eureka server, serverapp and client app are all running on the same machine.

2020-05-21 16:48:28.772 ERROR 14484 --- [nio-7211-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is feign.RetryableException: connect timed out executing GET http://HelloServer/] with root cause

java.net.SocketTimeoutException: connect timed out
at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method) ~[na:1.8.0_211]
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85) ~[na:1.8.0_211]
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) ~[na:1.8.0_211]
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) ~[na:1.8.0_211]
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) ~[na:1.8.0_211]
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) ~[na:1.8.0_211]
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) ~[na:1.8.0_211]
at java.net.Socket.connect(Socket.java:589) ~[na:1.8.0_211]
at sun.net.NetworkClient.doConnect(NetworkClient.java:175) ~[na:1.8.0_211]
at sun.net.www.http.HttpClient.openServer(HttpClient.java:463) ~[na:1.8.0_211]
at sun.net.www.http.HttpClient.openServer(HttpClient.java:558) ~[na:1.8.0_211]
at sun.net.www.http.HttpClient.(HttpClient.java:242) ~[na:1.8.0_211]
at sun.net.www.http.HttpClient.New(HttpClient.java:339) ~[na:1.8.0_211]