[2022] Mutliplayer connection issue

Issue with multiplayer
Whenever I try to join a ranked/royal game or a server, the error message 'couldn't connect to server' appears. It works from time to time, but rarely, maybe once in 5 times. It's really annoying because the game loses a good part of its interest when you cant play online, it's also a problem for my teammates in 2v3, (and for myself because games are considered lost).

I've already tried to configure my NAT to accept trackmania ports but it did nothing.
It seems to be related to my computer, because I don't have this error on my labtop.
I have no idea if it might help, but here is my DXdiag: https://pastebin.com/eB4weWHX: (https://pastebin.com/eB4weWHX)

Thank you in advance for your help and your time