Not sure if I have the same issue, but I do have a problem playing Rapid IPTV streams on my Raspberry pi 3 osmc system. I have the november release with kodi 16.1. The streams do not open and the log gives the error:
ERROR: CCurlFile::FillBuffer - Failed: HTTP returned error 401
It is not an access issue though, because I can open the file fine with wget(on the pi) and VLC on my laptop.
Now I even installed kodi 16.1 on my laptop (ubuntu 16.04) and there it also plays fine. Therefore It seems to be and issue with the armhf build. I’m baffled.
For reference I also upgraded osmc to kod 17 beta 5 and the laptop to kodi 18 nightly (couldn’t find a 17 build there) On osmc it still didn’t work. On the laptop it worked fine…
In all I haven’t been able to reproduce the problem on any kodi version on the laptop and I haven’t been able to get it to work at all on any version on the raspberry pi.
Any advice or idea is appreciate.