Question about RDS Behaviour when broker fails

Hi,

I have a question regarding RDS  when broker fails.

Let's assume we have two session host servers S1 and S2 and one broker server B1

What happens when user try to open a session and broker service is down.

 I have read in the broker service description : "Enables a user connection request to be routed to the appropriate Remote Desktop Session Host server in a cluster.If this service is stopped, connection requests will be routed to the first available server."

So my question is the above statement really accurate? I have tried that and got the below errors

Remote Desktop Connection Broker Client failed to redirect the user xxx\yyyyy. 
Error: NULL

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

any idea?

Thanks