Lately I keep running into buffering issues. My files are mp4 with h264. My connections to the WIFI are My download is 90 -120 Mbps and upload is 18-30 Mbps at the pc with the plex server running and the Roku running the Plex app is showing download at 88Mbps. The odd thing is it will buffer at the beginning and then again at the end of an hour long episode. This is all mainly DVR recording that I have downloaded and converted of series from years ago that I did not have time to watch. I know the files are good because if I just play them back on the pc they run fine.
Any suggestions?