Unable to Add SAP System in NWDS to import RFC into BPM

Hi ,

I created a RFC out of a BRFPlus function in CRM system.

Now I am trying to add the SAP CRM system in NWDS from Preferences option.

But unable to do so.The error says wrong user/password.

However I am able to create the relevant configurations in Netweaver Administrator successfully.

Can you pleas guide me on how to add the SAP CRM system successfully in NWDS?

Thanks in advance