I can watch the channels because my playlist is cached by the client. But trying to refresh it, s2.iptv66.tv and s1.iptv66.tv are both down (error code 521). Is it just me ?
EDIT 2: It looks like it only blocks via browser, other clients are still accepted. Phew! 
EDIT: ok I just found out from another thread that looks like downloading the m3u is not available anymore? Not sure how I can watch it if I can't download the m3u. I'll read more about it and try to understand what is going on. I do run some filtering in the m3u before I send the list to the TV, been doing that for years. Can't send all that porn to the TV.