Error while generating HTML report in zen pages

Hi All,

              I have configured my application with IIS 8.5 in windows server 2012.

             I have tried to generate sample HTML report . The issue is

                 when the url is like 'http:\\192.168.1.2\test...mode='html'....'    the reports are generated successfully.

                 but while using systemname like 'http:\\mysystemname\test....mode='html'...' the reports are not generated and throws error like

"   The XML page cannot be displayed Cannot view XML input using XSL style sheet. Please correct the error and then click the Refresh button, or try again later. The stylesheet does not contain a document element. The stylesheet may be empty, or it may not be a well-formed XML documen..."

           Please advice me...

Forget to say, If I use url like 

          'http:\\mysystemname:57772\test...mode='html'....'

the reports are working fine.

              The error not thrown on below IE8. throws above IE 8. 

Thanks,

Archunan K.