WCF NetTcpBinding TCP error 10013

Hi,

I'm running a C++/CLI WCF self-hosted service and a Windows Store App client. It works when the service and client are running on the same computer. When I move the service to a remote computer in a Home Network (i.e. no Domain) I get the TCP error 10013 "An attempt was made to access a socket in a way forbidden by its access permissions".

On the remote (service) computer I have added the Windows features of:
.NET Framework 4.5 Advanced Services
    WCF Services
        TCP Activation
        TCP Port Sharing

The following is the service initialization code:

void WcfPlaylistManagerConfig(String^ hostMachine, String^ port)
{
	System::Type^ type = PlaylistManager::typeid;

	String^ uri("net.tcp://main:7008/PlaylistManager");
	String^ uriMex("net.tcp://main:7008/PlaylistManager/mex");

	ServiceHost^ host = gcnew ServiceHost(type);

	try
	{
		NetTcpBinding^ binding = gcnew NetTcpBinding();
		binding->Security->Mode = SecurityMode::None;

		host->AddServiceEndpoint(
			type,
			binding,
			uri);

		Binding^ mexb = MetadataExchangeBindings::CreateMexTcpBinding();
		ServiceMetadataBehavior^ mdb = gcnew ServiceMetadataBehavior();

		host->Description->Behaviors->Add(mdb);
		host->AddServiceEndpoint(
			IMetadataExchange::typeid, 
			mexb, 
			uriMex);

		host->Open();
	}
	catch(ConfigurationErrorsException^ ex)
	{
		System::Diagnostics::Debug::Print(ex->Message);
	}
}

The abbreviated client code does this:

void Connect()
{
	NetTcpBinding binding = new NetTcpBinding(SecurityMode.None);
	EndpointAddress addrPlaylistManager = new EndpointAddress(uriPlaylistManager);
	_playlistManager = new Fb2kPlaylistManager.PlaylistManagerClient(binding, addrPlaylistManager);
}