online problem

Hi, when you enter the lobby, a connection goes to a person, you go in, but when you come to him, he throws out of the lobby, do you know the solutions to the problem? or is it a problem with the servers?
https://filestore.community.support.microsoft.com/api/images/b2dc2f0a-f9d3-48e8-87b1-6e9341c370f1?upload=true