Your company has an Active Directory domain.
All servers in the domain run Windows Server 2008 R2.
The RD Gateway role service is installed on a server named Server1.
The Remote Desktop Services server role is installed on servers named Server2 and Server3.
Server2 and Server3 are configured in a load balancing Remote Desktop Server farm named Farm1.
You install and configure the RD Connection Broker service on a new server named Server4.
You need to configure Server2 and Server3 to join the RD Connection Broker.
What should you do next?