WCF application don't working

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VS2008

C#

Visual-Studio

WCF

Greatings from Latvia!
I'm making application with WCF. But it don't working fine.

so IService.cs

namespace WCFSample
{
    [ServiceContract]
    public interface IService1
    {
        [OperationContract]
        string MyName(string name);
    }
}

Service.cs

namespace WCFSample
{
    public class Service1 : IService1
    {
        public string MyName(string name)
        {
            return string.Format("My Name... {0}", name);
        }

    }
}

Here is Host ConsoleAplication Code. I have added References to Host aplication. (system.ServiceModel and WCFSample

namespace ConsoleApplication1
{
    class Program
    {
        static ServiceHost customerHost = null;

        static void Main(string[] args)
        {
            try
            {
                HostCustomerService();

                Console.WriteLine();
                Console.WriteLine("Press any key to stop the services.");
                Console.ReadKey();
            }

                catch (Exception ex)
            {
                Console.WriteLine(ex.Message);    
            }
            finally
            {
                customerHost.Close();
            }
            
        }

        private static void HostCustomerService()
        {
            customerHost = new ServiceHost(typeof
                (Service1));

            ServiceEndpoint tcpEndpoint = customerHost.AddServiceEndpoint(
                typeof(IService1), new NetTcpBinding(),
                "net.tcp://192.168.1.103:9020/Service1");

            customerHost.Open();

            Console.WriteLine("{0} {1}", tcpEndpoint.Address, tcpEndpoint.Name);
            Console.WriteLine();

        }
    }
}

And here is Client ConsoleAplicaiton

namespace Client1
{
    class Program
    {
        static void Main(string[] args)
        {
            IService1 channel = null;

            var endPoint = new EndpointAddress(
                 "net.tcp://192.168.1.103:9020/Service1");
           channel  = ChannelFactory<IService1>.CreateChannel(new NetTcpBinding(), endPoint);
           Console.WriteLine("Enter Name");
           string line = Console.ReadLine();
           Console.WriteLine(channel.MyName(line));
           Console.ReadKey();
        }

    }
}

when I run on localhost all works. But when I run client app from another Pc in same subnet -> nothing. Client programm NotResponding.
I have read many literature and I can not find answers. Can someone help me?
Sorry my english.
english. :)
Thanks for answers