I have tried all that and nothing seems to be wrong with my or my friends internet connection.

Every time we try to connect, after sending an invite to each other, message pops up saying " the opponent has left the match".

Not just that, i cant even connect to online seasons or the cup games.

What is the problem, can anyone ever sort this out? You never give straight answer or solution, all you guys can do at EA is put the link of the Troubleshooting information which does not help anyone.

Do i need to open new port or something from this page https://portforward.com/fifa-20/