I have the same problem but only thing is that i want my modem near to my tv as for now  it is outside my apartment and in closed store.because of that am facing network issues.The old owner of the house had a Ziggo modem and it was connected using coaxial cable. see below:

https://www.cablers.nl/UMU-verdeler-voor-Ziggo-AOP

Now I get a KPN modem that has a DSL connection and I don't have a DSL connection nearby. So now it is connected through ethernet with main supply and am using internet booster to have good connection but i want to connect direct through the modem.

Not sure if it is possible to use coaxial cable as that cable is used earlier with ziggo modem.

can i use the same coxial cable with kpn xperia box if yes how?

Br

Paul90

Admin: Moved your reaction from this topic, and created your own topic for your question