As of the most recent update I can no longer play m3u8 streams via XTV or the PLEX IPTV channel by Cigaras. In my opinion It's broke and definitely the web app as it works fine on my phone via the plex IOs app as well as ROKU and FIRE. Please server on windows 7 Version 126.96.36.19939. I have never had this error until the recent Plex Web update
Not enough bandwidth for any playback of this item. Cannot convert to below minimum bandwidth of 103kbps.