I just installed PlexConnect (using OpenConnect) a few days ago, and immediately tested it without problems. Today was the first day I went to use it for real, and I had a bunch of problems.
I could access my server through the aTV (2nd gen, 6.2.1 OS), get a list of available categories from my Plex server, get a list of available shows, and available episodes, but I noticed artwork wasn't loading, and I couldn't play any episode. I checked to make sure PlexConnect was running (it was), and Plex Server was running (it was), so I rebooted PlexConnect (through OpenConnect). Still had the problem. I rebooted the Plex Server. Still had the problem. I pulled the plug on the aTV and everything was fixed on reboot.
A few hours later I had exactly the same problem, and this time I just pulled the aTV plug and when it booted up it was running fine.
Does anyone know why the aTV would be having issues, and whether there's a way to fix the problem? Looking at my troubleshooting, I can only assume that it's an aTV issue, and nothing with the Mac serving everything up, as rebooting it solves the problem.
Thanks for any help you can lend. I tried searching the forum and found others with the "Accessing Trailers" problem, but nothing that seemed to be the same as this issue I'm having.