EP connection

Hi experts

Im trying to deploy the buissness package ess on the portal 6.0, however when i enter the connector settings in the portal and test it i get an error message

Test Connection with Connector - Jan 1, 1970 11:17:09 AM

Test Details:

The test consists of the following steps:

1. Retrieve the default alias of the system

2. Check the connection to the backend application using the connector defined in this system object

Results

Retrieval of default alias successful

Connection failed. Make sure user mapping is set correctly and all connection properties are correct.