WCF Service Connection Failure In Xamarin Android

I have created an WCF Service and hosted it on Server.

This application having simple functionality like Get record from a SQL Server database.

Now I am executing this WCF Service on button click event in Xamarin Android of MainActivity.cs

But this is not working. Give me some solution. If I run the same service code in Normal C# application then it is working fine.

Bellow is my code.

public class MainActivity : Activity
{
TextView myLabel;
EditText txtUserName;
Button myButton;
HttpClient Client;
private string URIString;
protected override void OnCreate(Bundle bundle)
{
Microsoft.WindowsAzure.MobileServices.CurrentPlatform.Init();
base.OnCreate(bundle);
SetContentView(Resource.Layout.Main);
myLabel = FindViewById(Resource.Id.myLabel);
txtUserName = FindViewById(Resource.Id.txtUserName);
myButton = FindViewById
myButton.Click += myButton_Click;
}
void myButton_Click(object sender, EventArgs e)
{
var textview = FindViewById(Resource.Id.textView3);
var s = GetData();
var finalResult = s;
textview.Text = finalResult.ToString();
}
public string GetData()
{
try
{
var request = HttpWebRequest.Create("http://xxxxx:2498/MyRestService.svc/GetEmployee/1");
request.ContentType = "application/json";
request.Method = "GET";
using (HttpWebResponse response = request.GetResponse() as HttpWebResponse)
{
using (StreamReader reader = new StreamReader(response.GetResponseStream()))
{
var content = reader.ReadToEnd();
var cleanValue = System.Text.RegularExpressions.Regex.Replace(content, @"[^a-zA-Z0-9]", "");
return cleanValue.ToString();
}
}
}
catch (Exception ex)
{
return ex.Message.ToString();
}
var t = "error occured !!!";
return Convert.ToString(t);
}
}

Getting error : Connection failure (Access denied)

Give me some solution.
Thanks

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