Access Denied. If you are using the local administrators group to manage permissions, you might need to start the Runbook Designer with Run as Administrator.
1- The user trying to connect to the remote server is not a member of the Orchestrator Users group configured during the installation.
2- You didn’t grant the (Remote access to the RunBook Designer) to the Orchestrator Users group during the installation.
1- Ensure that the user trying to connect to the management server through a remote runbook designer is a member of the orchestrator group.
2- Ensure that the user and the Orchestrator Group have the Remote Launch and Remote Access permissions on the DCOM Configurations on the Management server (How to: http://contoso.se/blog/?p=2918 and https://support.microsoft.com/en-us/kb/2779526 )