Hi Kirk,
This worked for me.

conOrders.ConnectionString =@"Server = SERVER1;" + "Integrated Security = SSPI;" +
"Connection Timeout = 5;";


This worked as well. Depending type of authentication
SqlConnection connTrucks = new SqlConnection();
connTrucks.ConnectionString = "Data Source=SERVER1,1433;uid=Mobile;pwd=mobile1;Initial Catalog=Orders;";

HTH