stream mac to xbox one universal media server

It's not anything inherently wrong with the media server software handling very large video files, as it works fine when the client is something other than the Xbox 360. So what does that tell us? It's not that my server cannot keep up with the transcoding, as I've tried multiple machines. + Xbox 360 as client (regardless of the computer used as the server, the media server software, and the network cable/connection, the Xbox 360 cannot play a large video file over UPNP without stuttering using the same setup but using a laptop as a client works without any stuttering) + Wired LAN (I have an ethernet cable hooked up to both the server and Xbox 360 to eliminate any issues with WiFi I've tried multiple cables and the setup works even over WiFi when the Xbox is eliminated from the equation)

+ Large Source Video File (such as one from an AutoMKV rip of a Bluray, so 15GB - 30GB big with H264 video I have tried multiple large, presumably high bitrate files with the same results large MP4 files also result in stuttering smaller files 5GB or less yield good results) + Media Server (I have not only tried UMS, but Plex, TVersity, and others) + PC as the server (I have tried two computers one Windows PC and one Mac) First an introduction to the variables, many of which I tried more than one solution which largely rules out it being the culprit to my problem. I have spent the better part of the weekend trying to stream a large source video file from my PC to my Xbox 360 over my LAN without success.

Stream mac to xbox one universal media server