Iptv stb

I have a Minix NEO X7 and am using IPTV STB with a Rocket. Until recently everything has been pretty good. However, now I am finding that many channels are not connecting. Many of the ones that are, are very choppy and then others seem to be fine. In particular Fox Sports 1, DIY Network HGTV, etc. Is there something that needs to be changed or updated after last ECM? Is there a post somewhere for actual WORKING channels? Thank you.