t_aruns4.. hmm, in that case we may have to investigate this closely. I'm not sure if you want to upload the Controller logs etc onto the forum(assuming you are doing this trial on-premise). If so, can we take this troubleshooting into a ticket? Pls email help@appdynamics.com with the details. You are welcome to copy me hari.subramaniam@appdynamics.com and we will see what's going wrong and why the Controller UI is showing up blank.
One other thing to try would be to see if the admin page shows up.
http(s)://<hostname>:<port>/controller/admin.jsp
To eliminate any port-blocking or such network level issues, you can try this from your desktop command line
telnet <controllerhost> 8090
(assuming you've left the default http port at 8090. or use the one that you've configured the Controller Appserver to listen on)
Confident, one of those steps should yield us some clues..
