Model : Archer C8

Hardware Version : Not Clear

Firmware Version :

ISP : Vivo Fibra (Brazil)

Hi, I bought an Archer C8 and am wondering if it is possible to use this router instead of the one provided by my internet/tv company.

That is the infrastructure I have right now: ONT (BC-ONTB1) -> D-Link 6661 -> Coaxial (TV Decoder) + Archer C8.
The ONT is configured to route internet over VLAN 10 and iptv over VLAN 20. I've attached the configs made on the D-Link 6661 router.

What I'm trying to do is change the order of the routers, leaving them like that: ONT (BC-ONTB1) -> Archer C8 - > D-Link 6661 -> Coaxial (TV Decoder)

Thanks,
Peter