DataStage 8.1 Client is receiving the error, Failed to authenticate the current user against the selected Domain, when trying to connect.

Problem

DataStage Client is receiving the following error when trying to connect using Network Address Translation (NAT): Failed to authenticate the current user against the selected Domain A communication failure occurred while attempting to obtain an initial context with the provider URL: "iiop:/:2825". Make sure that any bootstrap address information in the URL is correct and that the target name server is running. A bootstrap address with no port specification defaults to port 2809. Possible causes other than an incorrect bootstrap address or unavailable name server include the network environment and workstation network configuration. javax.security.auth.login.LoginException: A communication failure occurred while attempting to obtain an initial context with the provider URL: "iiop://:2825". Make sure that any bootstrap address information in the URL is correct and that the target name server is running. A bootstrap address with no port specification defaults to port 2809. Possible causes other than an incorrect bootstrap address or unavailable name server include the network environment and workstation network configuration.