WCF Discovery returns machine names in metadata (cannot be resolved) - wcf

Question

So I have a WCF service hosted in IIS8 (Windows Server 2012). Here's the relevant part of the configuration file:
<system.serviceModel>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true"
multipleSiteBindingsEnabled="true" />
<services>
<service name="MovieCorner.DAL.Service.MovieCornerDalService">
<host>
<baseAddresses>
<add baseAddress="http://192.168.221.101/MovieCorner/" />
</baseAddresses>
</host>
<!-- Service Endpoints -->
<endpoint address="" binding="basicHttpBinding"
contract="MovieCorner.Commons.Services.IMovieCornerDalService">
<identity>
<dns value="localhost" />
</identity>
</endpoint>
<!-- Metadata Endpoints -->
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
<endpoint kind="udpDiscoveryEndpoint" />
</service>
</services>
<bindings>
<basicHttpBinding>
<binding maxBufferSize="2147483647" maxReceivedMessageSize="2147483647" />
</basicHttpBinding>
</bindings>
<behaviors>
<serviceBehaviors>
<behavior>
<serviceMetadata httpGetEnabled="True" httpsGetEnabled="True" />
<serviceDebug includeExceptionDetailInFaults="True" />
<serviceDiscovery />
</behavior>
</serviceBehaviors>
</behaviors>
</system.serviceModel>
A simple service with a simple binding, and with a discovery endpoint. The service is up and running, everything works fine. Almost...
Here's the code I'm using on the client side (it's just a "unit" test):
var client = new DiscoveryClient(new UdpDiscoveryEndpoint());
var response = client.Find(new FindCriteria(typeof(IMovieCornerDalService)));
Assert.IsNotNull(response);
Assert.IsNotNull(response.Endpoints);
Assert.IsTrue(response.Endpoints.Count > 0);
foreach (var endpoint in response.Endpoints)
{
Console.WriteLine("Address: {0}; Contract: {1}", endpoint.Address, endpoint.ContractTypeNames[0]);
}
The code successfully finds the only running service. The output is the following:
Address: http://ws12-iis8/MovieCorner/MovieCornerDalService.svc;
Contract: http://tempuri.org/:IMovieCornerDalService
The address is returned with the machine name that hosts the service. After the discovery I want to use the service like this:
var endpoint = response.Endpoints[0];
var clientProxy = ChannelFactory<IMovieCornerDalService>.CreateChannel(new BasicHttpBinding(), endpoint.Address);
var user = clientProxy.RegisterUser("1234"); // problem
The actual method call throws an exception, and the inner exception is the following: System.Net.WebException: The remote name could not be resolved: 'ws12-iis8'
The "unit" test runs in my PC, the service is hosted in a VM. I can reach the service at the http://192.168.221.101/MovieCorner/MovieCornerDalService.svc address. But not with the machine name address.
What am I missing? What are my options? How can I retrieve the actual (private) IP of the service hosting VM? I searched for different metadata options, but I'm not a pro in the web world, so I don't know what I'm looking for.
If you need more information, let me know. Thanks for your time!