Hello.
I've been struggling to get into games for years now. Got a new fibre line and thought I'd give it a shot again, but still have the same issues. I would not be able to connect to other players and when I do, once we get into the game it would end as soon as it starts and say that "One or more player's have left the server".
Though last night I did somehow managed to get into a Zero Hour match with 2 other guys, just ended up being very stuttery and match didnt last long.
I did port forward, firewall stuff, DMZ and static port, but nothing seems to be working. here is also my Port test results: