Hybrid Connection Manager UI Setup

Hi,

I logged the following with @AzureSupport Twitter:

"I have just downloaded the hybrid connection manager ui. I am stuck in an endless loop of 'Configure another Hybrid Connection' > log in > Nothing is listed > 'Configure another Hybrid Connection' > repeat ... I have tried on Windows 10 and Windows Server 2016. All I want to do is set up a hybrid connection relay"

The conclusion the agent came to was that Server 2016 is not supported but this doesn't sound right to me. Could I be missing some pre-requisites on the server?

Thanks in advance

Alex