Hi @binhex, I'm certainly no expert so please forgive me for not being confident when I say, I think the communication is initiated by Plex. The process to add xteve as a DVR to Plex requires the user to give xteve's IP to Plex in order for Plex to add the DVR, but that is my guess simply based upon that. Perhaps others in the thread might be able to provide a much more educated response.