I installed the trailers.cer to Apple TV via USB and iPhone Configuration Utility. I can see it in Apple TV Profiles...
I opened the necessary ports in my router as; 53, 443, 2080 (I chose this one as web port) and 32400...
I changed the Apple TV network DNS as my Computer's IP where Plex Media Server is running.
But when I enter the Trailers on my Apple TV I am stuck at "Accessing Trailer"... It takes quite a long time, and at the end it says "Trailers unavailable. Try again later"...
You can't just change the port PlexConnect is listening to (80 vs. 2080). Your aTV will still request data over port 80... just PlexConnect wouldn't be able to answer.
If you NEED to change that port, you have to make sure to install port forwarding and stuff as well.
Those are the DNS requests (Port 53). Set loglevel to High, and check the log file for "serving..." lines. They might give some hints about the port 443/80 connectivity.
I don’t see any intercept requests in those images, just the info of what is to be intercepted.
Additionally where in the install instructions is the need to port forward on your router? Having port 53 open to the outside is very dangerous.(unless you know how to secure it)
With the message about failed to connect to port 80, this means something else on your plexconnect machine is using that port. As Baa said the ATV will only use port 80 so to use something else you need to do the advanced setup and have vhosts etc. To forward port 80 to your chosen port.
To be more specific about jests using port 80 you will need to post all the information In the pinned “Read before posting” thread specifically the how to report a problem, so we have the details about your setup