Launcher has connection errors

Hello, suddenly since a few days, the launcher can’t connect the epic games network. I have installed the newest version, nothing. I have opened all of the local ports, nothing. I have (as you can see) a working internet connection. I have switched of the virus defender, nothing. I have found a reparatur tool for the launcher in the epic-games online sides, nothing. What else I can do?

Thanks for an answer.