Integrating Oracle Reports

Hello Need your help.

I have an oracle report test.rdf.

I configure my web.xml file AS:

<context-param>
       <param-name>reportCommand</param-name>
       <param-value>C:\DevSuiteHome_1\BIN\rwrun.exe</param-value>
</context-param>
<context-param>
       <param-name>fileDirectory</param-name>
       <param-value>c:\reports</param-value>
</context-param>
<context-param>
       <param-name>tempDirectory</param-name>
       <param-value>c:\reports</param-value>
</context-param>
<context-param>
    <param-name>databaseTNSName</param-name>
    <param-value>C:\DevSuiteHome_1\NETWORK\ADMIN\tnsnames.ora</param-value>
</context-param>
<context-param>
    <param-name>databaseUsername</param-name>
    <param-value>cobra</param-value>
</context-param>
<context-param>
    <param-name>databasePassword</param-name>
    <param-value>cobra</param-value>
</context-param>

Then my procedure to run report is:

procedure showReport is
 -- report url
 v_reportUrl_tx              varchar(32767);
begin

 v_reportUrl_tx := 'http://192.168.175.110/formspider/oraclereportsservlet?';

 v_reportUrl_tx := v_reportUrl_tx || 'rep_name=test.rdf';

 v_reportUrl_tx := v_reportUrl_tx || '&application_id=' || api_application.getid;

 -- show report
 api_component.seturl('mainPanel.renderer', v_reportUrl_tx);

end;

END; -- end body

On my formspider Application when I press button to call the previous procedure and run my report I have a the following message : The server have refused the connection

please could you help me?