It seems my ATV3 does some sort of checking for active internet access when it first boots. If not available it only presents 2 icons for local computers and settings I believe. Since PlexConnect is already hijacking trailers.apple.com, I'm wondering if there's an additional mechanism that could be added to trick the Apple TV into thinking it has internet access for the purpose of enabling the trailers app to access Plex on the local network while offline.
I haven't been able to find any info online or gotten around capturing network packets myself and see what it's actually doing. Anybody happen to have any info?