@Tony Thanks for the tip. However, I only have GFCI outlets in my bathroom and kitchen. This is a plain old outlet. Tony wrote @slimandslam If there are any outlets or breakers that are AFCI or GFCI...

There appears to be a "hiccup" on my home electrical system. Electrical devices have worked fine for years, but Powerline adapters are upset by it. I was using a Dlink, and then bought the TP-Link...