What can be the problem with connecting the Ps4 online?

No
- in PlayStation
8

I have specific problems trying to play Warzone online.

Other games work, it only fails at Battle Royal.

I've already covered the following steps:

Speed test on a laptop with and without an intermediate rooter as an access point
Download speed → with Rooter 27 Mbit / s; without Rooter 70 Mbit / s
Upload speed → with Rooter 0.3 Mbit / s; without rooter 30 Mbit / s

Speed test on the Playstation
Download speed → with Rooter 8 Mbit / s; without rooter 15Mbit / s
Upload speed → with Rooter 0.3 Mbit / s; without rooter 4 Mbit / s

Tried many settings in the root menu.

I now have two questions:

Why is it that the rooter generates so much speed loss?
I would also have no problem to always connect the Playstation directly to the socket. Shouldn't the speed be sufficient to connect to a game and what else could it be?

No

What is the problem? There seems to be a connection.

Otherwise:

it writes router
use cables and no Wi-Fi

So

NAT type already checked? This is important for matchmaking.

Gu

What is the error message written?

No

Error message when I try to join a game is "Connection to host / server timed out"

No

Is NAT type 2, as far as I know that should actually fit

No

The problem is that despite the internet connection, I can't connect to an online game.

As I wrote above, of course I connected the Playstation with a LAN cable

No

Can't connect then what error message exactly results?

No

Error message when I try to join a game is "Connection to host / server timed out"