RDS Single Sign On

I went through this series of articles to setup the RDS installation:

• http://thewolfblog.com/2014/02/08/deploying-a-2012-2012r2-remote-desktop-services-farm/
• http://thewolfblog.com/2014/02/10/collections-publishing-remoteapp-programs-and-session-desktops-on-rds-2012-2012-r2/
• http://thewolfblog.com/2014/02/13/deploying-the-rd-gateway-service-role-in-a-2012-2012-r2-rds-farm/
• http://thewolfblog.com/2014/02/02/configuring-ha-for-the-remote-desktop-connection-broker/
• http://thewolfblog.com/2014/02/02/configuring-the-rd-gateway-server-for-an-rds-farm-with-ha-enabled-for-the-rd-brokers/

Then I applied the following:

• http://www.miru.ch/single-sign-on-in-rds-2012-demystified

Using these as reference for the delegation GPO:

• http://windowsitpro.com/systems-management/q-how-can-i-enable-single-sign-my-remote-desktop-connections
• http://blogs.msdn.com/b/rds/archive/2007/04/19/how-to-enable-single-sign-on-for-my-terminal-server-connections.aspx

And I am still getting the prompt for credentials when I click on the published application.  It gets to the list of published applications just fine.  It is just the ask for the credentials when launching the published application that is still happening and proving to be annoying.

The configuration is as follows:

• Gateway Server 1
• Gateway Server 2
• Broker / Web 1
• Broker / Web 2

Gateway VIP to load balance the Gateway Servers.  Broker VIP to load balance the brokers.  Web VIP to load balance the web instances.

I have triple checked everything but I must be missing something obvious.  Any input would be great.

I found this in the event log:

Thanks.