Service cannot be reached - Web DynPro

Dear Guru's,

when i try to use Tcode SOAMANAGER or test my web dynpro application this error occurs. HOw do I solve this???

Service cannot be reached

What has happened?

URL http://inst50084487.blr4.sap.corp:8000/sap/bc/webdynpro/sap/appl_soap_management call was terminated because the corresponding service is not available.

Note

The termination occurred in system TRM with error code 403 and for the reason Forbidden.

The selected virtual host was 0 .

What can I do?

Please select a valid URL.

If you do not yet have a user ID, contact your system administrator.

ErrorCode:ICF-NF-http-c:000-u:SAPSYS-l:E-i:INST50084487_TRM_00-v:0-s:403-r:Forbidden

HTTP 403 - Forbidden

Your SAP Internet Communication Framework Team

Regards,

VIjaya Sankar.VJ