IIRC, Plex relay is has a very low bandwidth limit (around 2Mbps I believe), so if you are using this Infuse will not be able to stream any videos with bitrates of over 2Mbps. Infuse does not currently support transcoding these videos to smaller versions, so all videos are streamed in their original native quality.
If you are adjusting the bandwidth limits or upload speeds in Plex, they generally recommend to set a limit that is 2x the bitrate of the video being played. The reason for this is bitrates can vary quite a bit throughout the length of a video, and the bitrate shown in the video specs is simply the average bitrate.
Hi thanks for the response. Issue being my hardware and internet have not changed but Plex or Infuse access to Plex has changed so unless using an old server version remote access with relay isn’t working anymore. Multiple users on Plex are raising this with them but they asked if Infuse could check on your side if possible pls?