Issue while generating Report

I am trying to generate a rport and it is going in Generation running mode.

I checked CG5Z and the line item created there is not getting assigned to the Server defined.

I tested the RFC and generation server they are properly defined.

I ran program RC1WWIWP as a job and got the following meassage :

No valid generation server defined; WWI work process is terminated

In customizing o have define 2 servers and tested there RFC connection as well

Can somebody suggest what can be the issue.

Anoop