Applies to: Windows Server 2012 and 2012 R2
In a previous article, we demonstrated the steps needed to configure HA for the RD Connection Broker servers in an RDS 2012 farm. If you are using an RD Gateway server for a farm where HA is configured for the brokers, there are a few steps you will need to do in order for users to be able to successfully connect through the RD Gateway server(s).
When a user connects through the RD Gateway server, the gateway server will initially connect the user to one of the RD connection broker servers in order for the broker to determine what server or desktop the user will be connecting to. When HA is enabled for the farm, the gateway server will try to connect the user to the brokers using the DNS Round Robin name when HA was configured for the farm. By default, the DNS name used is not on the gateway’s allowable resource list for users to connect to. So for any user trying to connect to the farm through the RD Gateway, their access will be denied. To get around this, we will simply need to add a new resource authorization policy which will allow users to access resources through the gateway server using the designated DNS round robin name.