Can't get data into Hydra

Hi,

At the bottom line of S#.Data (Hydra) - release 4.3.22 I'm getting an error message which begins with:

11:09:43 System.ServiceModel.EndpointNotFoundException: Could not connect to net.tcp://localhost:8000/. The connection attempt lasted for a time span of 00:00:02.0038758. TCP error code 10061: No connection could be made because the target machine actively refused it 127.0.0.1:8000. ---> System.Net.Sockets.SocketException: No connection could be made because the target machine actively refused it 127.0.0.1:8000

I've got an LMAX demo account but am unable to get any data into Hydra or Designer

Any thoughts?

Thanks,
Merlin