thanks to all,
I am not in favor of the Powerline, in the professional field I share the fact that they are not good.
I had a particular problem that just made me waste time, basically I took a Tenda P200 and it never worked, then I got a Tenda PH3, same result.
Yet on Amazon Italy the Tenda PH3 is the best-selling powerline, so I say “is it possible that only for me it doesn’t work?”
I discovered the problem, even if very strange, practically the 2 powerline devices in all cases were paired correctly, but if I connect the LAN of my laptop the data network is completely absent. So at some point I connected some IP phones and to my amazement I found that they worked perfectly, zero latency, I got another PC and it works perfectly. Low ping and low jitter.
In practice I found that only the LAN card of my laptop does not work with the powerline, I highlight that the same network card (which I use every day) if I connect it directly to the switch works, so I never thought that was the problem.
It is as if the network card of my laptop is incompatible with the Powerline.
I reported this story of mine through Ticket a Tenda, I avoid commenting on their answer, professional zero.
I point out that I tried the powerline in my laboratory, a very old house with an older electrical system.
I wanted to tell you this story, hoping it will be useful to you, as well as considering whether the environment where you put the powerline is an old or new house, and if the electrical system is recent or not, also consider that there could be an incompatibility between the user’s network card and the powerline you are installing.
Thanks again to everyone and good luck.