Updating GPU drivers solved the issue.
Ok, finally got the solution. Somehow, the squad battles overview prior to match is stuck in another squad. This affects rivals and champions mode as well and passes you an instand disconnect if you quit without even seeing the match. The solution is to go to moments and start a dummy game from any moments. Once the squads reset with that overview, you can go back and play this game. This is found after resetting every possible setting nothing worked including DDU, reinstalling GPU driver, CPU dirver, ea anticheat, reset profile, reset squads, reset gpu settings, etc.... EA get your things together and do not let MIT Ph.D. to figure out a solution every time.
