Unable to connect to TERADATA from SSIS ADO.Net source

Hi All ,
I m trying to connect to TERADATA server from SSIS using .Net Providers\.Net data provider for TERADATA. After giving the server name and credentials i m getting the below error.    
Test connection failed because of an error in initializing the provider.[.Net data provider for teradata][100002] can not create the connection wiyhin the time specified.  
I have googled a lot but did not find any correct solution.I m struggling from last 2 days. Could you please help me in this as it is bit urgent.
Thanks in Advance.  
GTREDDY