Came across an interesting situation today. I was working with a client installing an RMS POC and was having difficulty getting the agent to report to the RMS. It would install, uninstall, and all the logs looked fine, but the targeted server would alway appear offline. What was even more curious was that the RMS server itself was showing up as not connected.
While troubleshooting, I noticed in the tasks that we had some errors stating that an account being used to install the agent did not have appropriate permissions to logo. This was curious since the same account was the one I was logged in directly to the server with. One of the other admin's overheard us and thought to mention that they had the secondary logon service disabled on all of their servers.
Before jumping to that I thought I would do a search to se if this was a dependancy. I was not able to find any reletive information related to this service and RMS. Even so, I enabled the service and restarted the RMS services. Within moments the agents started reporting properly to OpsMgr and appeared properly in the console.
Not sure, but maybe this will help you.