Hi Vishram
Would be great to get more info on your problem. This is pretty difficult for us to tell you what is wrong given your problem statement.
Couple of things to qualify:
* What's the application / technology stack you try to monitor?
* Have you deployed agents, which type? Is that the first deployment?
* Are your agents reporting? Have you checked agent log files and controller UI (Settings -> AppD agents) to see if they report
Have you been through the doc? It's easy to search and a lot of info there
https://docs.appdynamics.com/display/PRO42/Agent+Log+Files
https://docs.appdynamics.com/display/PRO42/Install+and+Administer+Agents
Best
JB