RDP Broker not redirecting

Hi,

I have a basic RDP setup in Azure, that at one point worked but now doesn't. I have a Gateway, a Broker and two session hosts. I can connect to the session hosts directly, but if i go through the Broker i get the errors below.

Errors:
Remote Desktop Connection Broker Client failed to redirect the user **\**. 
Error: NULL

Remote Desktop Connection Broker Client failed while getting redirection packet from Connection Broker.
User : **\**
Error: Remote Desktop Connection Broker is not ready for RPC communication.