So there are 3 variants:
Open 1st walls again and put additional cables
2. Place the network cable across the house
or 3. Buy the Devolo dLAN Starter Kit 650+
Plug connector 1 into the socket of the router and connect to the network cable.
2 plug inserted into the socket of the PC, connect the network cable and surf without speed limit.
I was initially quite skeptical about the use of such systems, however, have been more than thrilled after 5 minutes..
The full power of Unitymedia terminal (150,000) comes to 100% durable, trouble free.
Goods looks good, is neatly packaged and easy to use.
Strong buy recommendation.