Battlefront II - Can't play multiplayer and campaign

Hey! Thanks for clicking on this topic 🙂 I bought Battlefront II yesterday trough (Origin Key GLOBAL) and I'm having problems with the campaign and multiplayer

Problems: My region keeps changing to Japan or United States instead of Germany. When i want to play multiplayer im always waiting for players or having error 1066 and when i try to launch the campaign it crashes most of the time

Just some info: I have the minimum requirements for battlefront 2, I'm using win. 7 64bit and ive got 300mb/s internet speed.

Some other things that might help: I launched battlefront for the first time when it was on 17% download (its a bit playable, i like that feature), played it for like an hour. When the download was complete I went to the settings and i set everything to lowest graphics (trough the preset, i would change that later, i just wanted to be sure that it will load fast and it wont crash) and then i went to the my EA account settings (or something like that) looked to the regions that were there, i had Germany by default (mostly about 27 ping, I live in czech republic, country right next to germany), so looked which regions were there and then left it on Germany again.

Best description i can provide: 

Singleplayer: When i went to play the campaign it was loading for like 5 minutes, then it stopped loading and that was all. The second time I tried it the same thing happened, the third time it closed the game when it stopped as usual. It didnt even show any window that would tell me it crashed, it just closed. The fourth and fifth time the same thing happened as the third time. The arcade was working fine, this, the custom singleplayer match (not sure what that was called) and one laggy game of heroes vs villains (2v2) were the only things i was able to play.

Multiplayer: I wasnt able to play any of the modes except one 2v2 match in heroes vs villains, it was always giving me error 1066 or it was saying that were waiting for more players to join (that was the reason why i went to 2v2 match, i was sure that at least some players will be there). I was mostly trying the 20v20 match (i think it was called galactic assault), when i didnt get the error 1066 i was waiting in lobby and it was saying that were waiting for ~19 more people to join. When someone joined, someone else disconnected like 1 minute after. So I went to the settings - EA account - region and there wasn't germany as ive set before, instead of it united states (41 ping) was there. Its not high ping, but i had germany there, not usa. So i set it to germany and closed it and when i opened it few seconds later usa or japan was there. So that might be the reason why im not able to play multiplayer, but i have no idea on how to fix that.