Hello @gibon_pl ,
Thank you for getting back to us.
Please understand that when it comes to connectivity based issues, there are a variety of causes that need to be taken into account.
In the instance of your friends, you're all using different consoles and different networks, so we then need to go through various troubleshooting steps to help us rule out any potential local causes that may be impacting your connection to the game's servers.
These steps are key in allowing us to both rule out certain causes, but also in allowing us to gather more information about your setup, which is then key for the team to be able to investigate your issue further.
Could you please let us know if you were able to complete the steps provided by @Ubi-Gizmo ?