![]() With SSDP disabled, I started the Plex docker container and imported my media. Best NAS for Plex Intel Core i3-12100 CPU 16GB upgradeable DDR4 RAM 6 drive bays 2x 2.5Gb LAN Excellent OS Expensive 1,672 at Amazon 1,765 at Newegg When choosing a NAS for the home, you’re usually met with enclosures that house ARM or Intel Celeron processors. The answer was to disable SSDP under the File Services > Advanced section. Jumping over to the Synology Control Panel, I thought the solution to all of this was to disable WS-Discovery under the File Services > SMB section. With the name of the process known, I visited the Synology NAS’s Task Manager to find what service was using minissdpd. There I discovered port 1900 was being used by “MINISSDPD.” SSDP (Simple Service Discovery Protocol) was a protocol used by UPnP to handle the discovery. ![]() The first stop was the CLI and the netstat command. Now that I knew I was looking for something UPnP related, it was time to dig into the Synology NAS and find the service using port 1900. Based on other research I had done in the past, I knew DLNA relied on the Universal Plug and Play, a set of network protocols designed to help network devices find each other on a network. An early example was streaming videos or music from a personal computer to a PlayStation 3. ![]() Their documentation listed port 1900 being used for the built-in “DLNA Server.” DLNA was used as a way to share media between devices. So what was port 1900 used for, and what was using it on the Synology NAS? The first stop in the hunt was the support site for Plex. In general, most people who purchase a Synology NAS store their media files in a shared folder, which makes running Plex on a Synology a great option as you’re running it on the same device that is storing your media. Except the Plex container would not start.Ĭhecking the logs for Docker showed that Plex could not bind to port UDP 1900 because it was already in use.determined the problem was caused by the container trying to bind to port UDP 1900. Plex is one of the best applications that you can run on a Synology NAS. I just had to add a volume mapping to my media share. ![]() Most of the environment settings and port publishing were configured automatically. ![]() Direct playing media or transcoding only audio will work fine. The setup process should have been simple. Synology with ARM or AMD CPUs do not support hardware accelerated transcoding with Plex (no GPU). I recently played around with a new Synology NAS and got the crazy idea to run Plex on the system, but from a Docker container (there may be a post about that soon). ![]()
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