[ColdRain]

not sure what your kodi code looks like, but did you try directly playing m3u8 by creating empty file and name it to .strm and play that via Kodi? if that doesn't work, then look at request your browser makes when m3u8 is called (you can use fiddler or inbuild browser developer tools' network tab), and check whether anything else is added to Request like Referer or Cookies. If it does have any of that, then add pipe character after your m3u8 and append whatever is being sent, for example (xxxxx.m3u8.xxxxx|Referer=http://xxxxx) and then try again in Kodi.