Citrix releases XenApp Console Discovery Repair
When the issue described in CTX122690 – Discovery Does Not Run Successfully after Restarting the Server] is observed on a system, the COM components of Citrix IMA COM Interop might not be properly registered into the system. The required role might not be properly added as well by the installer.
To check, open the COM+ Applications – Citrix IMA COM Interop on the Component Services of the affected host and verify the entries under the Components and Roles folders are missing.