Nat type change from the Pyur cable modem?

I'm a customer of Pyur and I've gained Internet and a Playstation connected via Lan and would now like to change the Nat type because my Playstation tells me in the party that no communication is possible because of my Nat-type what to do?

What kind of router do they have? 🙂

Technicolor T7200

https://www.google.com/...5499719058

The download starts right away. It's pretty well described