First, sorry if this isn't the right component but I couldn't find anything for UCP Node Server.
I did a module update and now am seeing UCP Deamon Not Running on the System Dashboard. I did a netstat and 8001 is not listening. I uninstalled and reinstalled the module as well, no change.
I don't have XMPP or Conference Pro modules, which I believe are what use UCP Node Server (according to the Wiki). However I'm not sure if that means it shouldn't be running.
I saw a bug report for UCP Deamon not showing the correct status on the dashboard (was always showing as running) so am not really sure if this is a new development or something that existed but I didn't know since of that bug.