Squ1sh86

Hi guys I have been trying to solve this one for 6-months. As soon as an online game loads it we disconnect. Offline works fine. Online lobby works fine. A game will load and 5seconds later d/c every time. I have tried uninstall-reinstall. I downloaded Tiberian sun and same happens online. I am almost certain it is to do with a windows 10 update. Work laptop so cant undo Anyone help at all? Thanks