I have recently switched my router to a new Fritz!Box 6591 Cable. Ever since that I had network issues that prevent me from joining any matchmaking. As a result I can play strikes and Override etc solo, but can not play any Gambit or Crucible. I have enabled UPnP and the errors I receive as seen in the imgur are reproduceable even if I set my firewall settings to exposed host, the error remains the same. Also tried manually opening ports or restricting internet access to only IPv4/IPv6 respectively. I believe it is related to the router, but the error message is not really helpful. Is there any way to narrow down the problem or maybe a known fix. Any help would be much appreciated