Configure DCOM settings on the primary Administration server if you did not allow the setup program to configure DCOM for you.
If you selected to not configure Distributed COM during the DRA installation process, you should update the membership of the Distributed COM Users group to include all user accounts that use DRA. This membership should include the DRA Service Account, all Assistant Admins, and the account used to manage DRA REST, DRA Host, and DRA Admin services.
To configure the Distributed COM Users group:
Log on to a DRA Administration computer as a DRA administrator.
Start the Delegation and Configuration console. If the console does not automatically connect to the Administration server, manually establish the connection.
NOTE:You may not be able to connect to the Administration server if the Distributed COM Users group does not contain any Assistant Admin accounts. If this is the case, configure the Distributed COM Users group using the Active Directory Users and Computers snap-in. For more information about using the Active Directory Users and Computers snap-in, see the Microsoft Web site.
In the left pane, expand Account and Resource Management.
Expand All My Managed Objects.
Expand the domain node for each domain where you have a domain controller.
Click the Builtin container.
Search for the Distributed COM Users group.
In the search results list, click the Distributed COM Users group.
Click Members in the lower pane, then click Add Members.
Add users and groups that will use DRA. Ensure you add the DRA service account to this group.
Click OK.