Not able to launch debugger from NWDS. can not connect to the server..

Hi Experts,

I was trying to debug my Java DC's. Accessing the NWDI track for Utility customization. I am getting the error when launching the debugger.

Put the server and sdm into the debug mode.

1) In NWDS-> Debug mode-> trying to debug as ->remote java application---is this correct?? or debug as J2ee application or runtime workbench

2) Debug as -Remote java application -> under connect given the correct Host and debug port 50221 of the server, but when i click on the debug button then status bar is coming stablishing the connection..................and hang here. not able to connect to the server.. any idea??

3) i waited lon hour but no luck... Where i can check log of this??

Please suggest me on this.

Regards,

Narpal