@KernowPhoto I assume no one knows then

You will need to leave it on for it to work. If you switch the socket off then the powerline adapter will not work. However, when the power is switched back on it will re-link automatically - no need...

I currently have a set of three AV500 powerline extenders - one is connected to my router, one provides and RJ45 ink to my solar power inverter to provide monotoring info and one is connected to my...