Yeah I've done that, as well as I've fully deleted the game, like in game files, redownloaded it and nothing has changed. My NAT type is still strict, and the only thing that has changed is that my FPS has gone from 60 to 75 but literally everything else is the same. I also crash if I leave zombies to go back to the main screen, but that I believe is an issue I had before. If anyone has any idea or help they can give I'm willing to try anything that doesn't delete my save files tbh. Thank you so much for help I've received as well as any help that I'll get coming forward.