Down by your clock, on the right side, locate your Volume icon. You should be able to click that and it will pop up your selected output. You might need to change the Output to whatever device your speakers are.
Peter, I was told no sound comes through the server speakers because the radio is nearby. So , I think you are working as designed. I’m new though so could be wrong. I don’t get sound through my client which is more of a problem. I’m thinking my router ports are being reassigned by reviewing the log files.