You are currently offline, waiting for your internet to reconnect

Error when you add Remote Desktop Connection Broker as a cluster resource in Windows 2008 R2: "Only one instance of this role is allowed in the cluster"


On a Windows Server 2008 failover cluster, you try to add Remote Desktop Connection Broker by using the Services and Applications High Availability Wizard in the Failover Cluster Manager. In this situation, you receive the following error message:

Only one instance of this role is allowed in the cluster.


This error indicates that a generic service has already been configured in this cluster. You cannot have a clustered generic service configured in a cluster before you configure a clustered instance of Remote Desktop Connection Broker.


To work around this issue, use one of the following methods. 

Method 1: Create a new generic service resource that is configured for Remote Desktop Connection (recommended).

To do this, follow these steps:

  1. Click Start, and then click Control Panel.
  2. Open Administrative Tools, and then click Fail Over Cluster Manager.
  3. Expand the cluster name, and then right-click Services and Applications.
  4. Click Configure a Service or Application.
  5. In the list that appears, click Generic Service, and then click Next.
  6. In the list that appears, click Remote Desktop Connection Broker, and then continue with the installation process. 

Method 2: Delete all existing Generic Service resources, and then repeat the process for adding Remote Desktop Connection Broker.

Note When you use this method, additional resources may come to depend on the fact that the Generic Service resource is deleted. Additionally, you will then have to re-create the deleted resources.Remote Desktop Connection Broker in a Windows Server 2008 R2 Cluster, visit the following TechNet website: 

Deploying Remote Desktop Connection Broker with High Availability Step-by-Step Guide

More Information



Article ID: 2023525 - Last Review: 05/28/2010 18:49:00 - Revision: 7.0

  • Windows Server 2008 R2 Enterprise
  • KB2023525