I've been trying to setup IWA on Portal. However, every time I try to enter the portal identity store, it fails with the following error:
java.lang.Exception: Could not connect to the user store. Please check the configuration and try again.
I'm also the domain admin. This is Portal 10.3.1 running on a Server 2012 R2 with an AD in Server 2008 mode. Any ideas? Not really getting anything extra in the log.