OracleConnection.Open is throwing ORA-12541 TNS no listener

Question

So I am connecting to an external server through C#. I just installed Oracle 11g client on my machine from here: http://www.oracle.com/technetwork/database/wind

Answer 1

Thanks for all your input. I changed my connection string and it worked. Here its what looks like:

 private static string GetConnectionString()
    {
        return "Data Source=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=TestHostName.us.local)(PORT=1523) ) )" +
               "(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=CCDB)));User id=UserName; Password=Password; enlist=false; pooling=false;";
    }