Why can't Marvel Comics team up against his friends?

Marvel Comics' friends can't form a team because of the router port problem. According to relevant information, Marvel Comics can't team up with friends because of the router port setting problem. You need to enter the router to see if the UPnP project has the port indicated by the error message, and if it is not found, restart it. If you still can't team up, you need to modify the inbound and outbound rules of the firewall framework. If the above methods can't solve the problem, you can consult the game customer service staff.