I am installing a fresh Citrix farm. I installed XenApp 6.5 and configured while configuring the XenApp, added domain\ctxadmin user as the farm administrator. Now when i log into Administrator account into the XenApp server and run discovery it says

This user account is not an administrator of this farm, or there was a problem contacting the data store. Check that the data store server for the Citrix XenApp farm is online, and verify that your account is configured and enabled as an administrator on the farm

Then I tried to RDP into the XenApp server as ctxadmin user and now I get an error

"The Desktop you are trying to open is currently unavailable. Contact you system administrator to confirm the correct settings are in place for your client connection"

I believe starting from XenApp version 6.x, once XenApp is installed, then a Citrix Policy needs to be changed as given in http://support.citrix.com/article/CTX124745

But for changing the Citrix policy I need to log into AppCenter which I am not able to do so as I am not able to run discovery as given above. So I am caught up in an end-less loop.

Any help would be greatly appreciated