'The server is not powerful enough to convert video'
I have just bought the DS216play and transferred all data onto new WD Red HDD's. The data includes a large number of mp4 video files, varying between SD, 480,720 and 1080p predominantly AAC. When trying to stream/play video files the large majority (of lower resolution files) do not play. Instead I get the message "The server is not powerful enough to convert video'.
Within Plex settings the Player for Local Quality is set to original. My old WD MyCloud continues to play all of the mp4 files without any problem. Is this an issue with the DS216play or with Plex software for this NAS? Any advice/support would be greatly appreciated.