Powerline 1000 no internet

I had this once and nearly pulled my hair out for two hours trying to reset every router / modem / powerline I owned.  Turned out something happened with the electricity supply / fuse box that started causing interference.  I flicked the main electric off and back on and all worked perfectly well again.  If you've tried everything else may be worth a try?

Otherwise, all your reseting may mean the units are not sharing the same encryption key anymore.  Try setting them manually by connecting them to a PC / laptop individually to make 100% sure they have the same key

Hope this helps