It was connected to the wall . That's weird ...
Interesting, notice you get the same IP from the ONT and the router. As I understand it, the ONT is giving a 192.168.0.100 but then through PPPoE, you acquire the public 79.118.x.x.
If you connect direct to the wall, and disable the PPPoE, can you still get online? Also, what happens if you go to IP 192.168.0.1 in a web browser?
What if I disable the router DHCP ?
You need more information on how your ISP works. Do they allow any device with the user/password to connect? Does the ONT do PPPoE? NAT? Also why were you only getting 50Mbps connected direct to their ONT when you said your plan is 1000Mbps?
No matter what, it would be a good idea to change the access IP (192.168.0.1) and DHCP range so not to conflict with the ONT. Also, if the ONT does PPPoE, then having the router do it too can cause conflicts and might explain the speed issues. If it does NAT, then you should probably put the router in AP mode.