Hi, I have installed and configured two SSRS instances that shared single report server database. I would like to use F5 as my NLB. Can you anyone please share their experience how to configure or setup both from SSRS and F5 side? Thanks and Regards, Uzzie

Hi Uzzie, If you are configuring a report server scale-out to run on a Network Load Balancing (NLB) cluster, you must ensure that the NLB cluster is accessible through a virtual server name that maps to the virtual server IP address. A virtual server name is necessary so that you can configure a single point of entry to the NLB cluster. When you configure a URL for each report server instance, you will specify the virtual server name as the host. Besides, you have to configure view state validation to support interactive report viewing. Interactive reports are typically rendered numerous times during a single user session to visualize new or different data in response to user actions. By configuring view state validation, continuity is preserved within the user session regardless of which report server services the actual request. For more information about How to: Configure a Report Server on a Network Load Balancing Cluster, please see: http://msdn.microsoft.com/en-us/library/cc281307.aspx Thanks, Challen FuPlease remember to mark the replies as answers if they help and unmark them if they provide no help.

Hi Challen, Thanks for your reply. I will have look at the link. Cheers, Uzie

There is an additional verifcation, please double check you have the same .NET framework version on both machines (event security updates) go to C:\Windows\assembly\System.web and check the details in the version number. That will ensure that all the requests are processed properly

Hi Jaime, Thanks for your reply. I have checked both machines have same version of .NET framework. Cheers, Uzzie