I am trying to execute command line dataloader from our server, where as there are no proxys setting setuped  in our server.
In process-conf.xml i have included below lines as blank as our server doesn't hold any settings.

<entry key="sfdc.proxyUsername" value="" />
                <entry key="sfdc.proxyPassword" value="" /> 
                <entry key="sfdc.proxyHost" value="" />
                <entry key="sfdc.proxyPort" value="" /> -->

Error while calling web service operation: login, error was
: Failed to send request to https://test.salesforce.com/services/Soap/u/44.0
com.sforce.ws.ConnectionException: Failed to send request to https://test.salesf
orce.com/services/Soap/u/44.0

Caused by: org.apache.http.conn.HttpHostConnectException: Connect to test.salesf
orce.com:443 [test.salesforce.com/85.222.129.39, test.salesforce.com/85.222.128.
167, test.salesforce.com/85.222.129.167] failed: Connection timed out: connect
        at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect
(DefaultHttpClientConnectionOperator.java:158)

The encrypted Key and encrypted Password was correct as i could able to extract the file on my local PC where as when i tried to implement the same in our server, i am getting above error.
As i said at server level nothing proxy was setuped and same was checked with IT team.

Please suggest any inputs how to proceed further.

//Siva