I opened the box, I did not read the instructions, I did not load any of the included software.I plugged the two devices in and they worked fine.It has totally solved a squirrelly wireless networking problem.Turns out the included software is to encrypt the data over the power-line.I didn't bother with that as it seems unlikely my downstairs neighbor is trying to surveil my data.According to the instructions it doesn't like being plugged into power strips. It wants a connection directly into the wall for both units. It doesn't seem to care if one unit is on the same electrical circuit as the other, which seems like the blackest magic, but who cares if it works.