Online game problems?

I have a question with me in Fortnite I come into the lobby but then I no longer get into the game so it is due to the WLAN how can I fix it.

The problem also exists with all other online games.

What does your firewall look like?

Uh normal? No idea to what extent is this relevant? 😅

Just play real games. Problem solved!

If you read the question carefully you would have noticed that I also have the problem with all other online games. I only took Fortnite as a special example because it is the best known.