I'm new to IPTV and running the Openbox V8S. It works but I wouldn't recommend it, regularly freezes when you are flicking through channels and then you have to kill the power to get it working again. Plus no EPG. Also football yesterday was unwatchable (pic freezing), though not sure if that was down to my provider, waiting on a reply.
I had the same problems as stated above. I found that once you have your m3u file from your provider you then download this and rename it. Most guides state to rename webtv.m3u, which i did. For my V8S this failed to recognise the file. After a bit of searching I found that if you just rename the file webtv without the .m3u extension this works, which it did for me.
It seems for some V8S boxes it works with the .m3u extension and for others like mine it only works without the extension and just renaming the file webtv. Whether this is down to some differences between boxes or the .m3u files from providers, I don't have the technical knowledge to say.
In terms of uploading the file to the V8S, process is exactly as described in an earlier post by barneygumble, takes just a minute to sort.
I'm looking at getting a new box and leaning towards the mag256, seems a solid choice, any others I should look at?
Cheers