It's not what the powerline adaptors are doing for you, DtG, it's more what they're spraying over the environment while they're doing it. Even the best-designed wired networks will leak (the trade keyword is TEMPEST*), and house wiring is not designed as a computer network. I'll save you the coredump on our radioastronomical Project's adventures with avoiding interference from a stray overtone emitted by the campus network. Trust me: that saga has the "How are you?" --- "How long have you got?" nature. * An acronym, as well as a cuss-word.
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