Re: AppDynamics displays blank page

t_aruns4, glad you verified that the license is all sorted out etc. The blank page when hitting the Controller URL (https://host:port/Controller) could be related to the browser side of things as well. Please note that AppDynamics Controller UI depends on Flash. If for any reason, your browser is unable to provide a Flash runtime environment, then there is a good chance the UI will not be as you'd expect. See https://docs.appdynamics.com/display/PRO42/Using+the+Controller+UI for details around the Browser side reqmts. Suggest you try accessing the URL from a totally different machine / browser combination to see if that works... Kindly post back if that still didn't help