Problem in REST WCF webclient service

See more:

WCF

Silverlight

REST

This is my Code:

WebClient reportClient = new WebClient();
     //String uri = "/ServiceManager.svc/GetReport";
     string uri = "http://xyz.com:4511/LIService.svc/GetState";
     reportClient.DownloadStringCompleted +=new DownloadStringCompletedEventHandler(reportClient_DownloadStringCompleted);
     reportClient.DownloadStringAsync(new Uri(uri));

My web service is now hosted separately

[OperationContract]
[WebInvoke(Method = "GET",
BodyStyle = WebMessageBodyStyle.Bare, RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json,
UriTemplate = "GetState")]
public List<State> GetState()
{
    DBManager dbManager = new DBManager(DataProvider.SqlServer);
    dbManager.ConnectionString = ConfigurationManager.ConnectionStrings["LaborInsightConnectionString"].ConnectionString;
    List<State> stateList = new List<State>();
    try
    {
        dbManager.Open();
        dbManager.ExecuteReader(CommandType.Text, "select Name , FullName  from CanonState where FullName<>'Unknown'");
        while (dbManager.DataReader.Read())
        {
            var rep = new State
            {
                id = dbManager.DataReader[0].ToString(),
                Name = dbManager.DataReader[1].ToString()
            };
            stateList.Add(rep);
        }

    }
    catch (Exception ex)
    {
        throw ex.InnerException;
        //return null;
    }
    finally
    {
        dbManager.Dispose();
    }
    return stateList;
}

When web service is separately hosted, it is not able to consume in my project.

Please help me. Thanks in advance.