Hello @Kassollo
At the very beginning of this report there is a diagram.
If we don’t know what kind of multimedia cabling you have installed, it’s difficult…
The best option would be 8-wire cabling.
Are your cans marked “yellow” and “green”?
Then you can take a normal cable and slap it from the DSL socket onto the socket that leads into the living room. You may have already plugged in a cable there that you took from the router.
You move the router into the living room and connect it there.
So you would have the router in the living room.
But you can also install a WiFi box in the living room and then have WiFi and the box is connected via cable.
But if you’re very unlucky, you have no choice but to open the box and see how the electrician connected it. But you do this at your own risk if you do anything there.
So far I have always found a solution with customers on how to bring the signal into the living room.
greetings Lorenz