RDP sessions that are not in console mode do not allow access to the console registry on the remote computer. This is a security feature implemented by Microsoft to keep users from impacting the computer directly by accessing registry values. These sessions create a temporary session file that includes the user's session registry and file structure. This is cached on the server until a predetermined time set by the administrator or removed during server maintenance. This may cause the SEPM to not start Symantec services critical to functionality. IIS requires a console session to allow for proper installation and configuration.