No sooner said than done: connected everything just within 2min and behold .... it works perfectly. What more do you want?
Previously I had a room in very poor Wi-Fi reception, which has often led to dropouts. Cable laying was not an option ... for that I would have had to cut across through the apartment. Also looks so not as fancy. So just use existing cables such as the power grid. And it works really great. No more dropouts and my download and upload reached unexpected dimensions. Really good! Highly recommended for all with similar problems.
