How to Dapper & AseClient

Unable to connect to Sybase, not getting error.

I have referenced Sybase.AdoNet4.AseClient.dll from C:\Sybase\DataAccess\ADONET\dll to my MVC 5 project, running in .NET 4.5

Web.Config Connections string

    <add name="MyASEServer" connectionString="Data Source=127.0.0.20:12000;Initial Catalog=MyDB;User Id=USer1;Password=Password1;" 

providerName="Sybase.Data.AseClient"/>

My code

    string constr = ConfigurationManager.ConnectionStrings["MyASEServer"].ConnectionString;
    IDbConnection aseDB = new AseConnection(constr );
    var myCustomer = aseDB.Query<Customer>("select * fromdbo.customer");

When the debugger reaches aseDB.Query...., it never return and not receiving any error.

What am I missing.