Multiplayer Fifa 21 in the house only partially works?

FOLLOWING PROBLEM

All 3 rooms PS4

Room 1 Ps4 normally connected to Lan

Room 2 with powerline

Room 3 via WLAN

-If rooms 1 and 2 play against each other, Fifa 21 is no problem

-If room 3 wants to play online no problem

But if room 1 wants to play against 3 it doesn't work. Room 3 can be seen online in the game Fifa. You can also invite him, but don't connect to the game!

This means that room 3 can play online, but not against room 1 in the house.

What can that be. If that is due to the WLAN, he couldn't play online, right? Hope understand like mine Maybe someone has a solution, why can that be?

Can Zimmer 3 generally play online, also against other players?

I guess it can be more due to the ps4 settings.

Otherwise a weak WLAN connection

Can Zimmer 3 generally play online, also against other players?

Yes, it's quite normal

Has done, thank you. Now go 👍