Battlefield 2042 beta is now available for players. However, players are reporting Battlefield 2042 Unknown Error issues in matchmaking. Players are also experiencing various issues with the game including connectivity issues. Read how to fix the unknown error in Battlefield 2042 matchmaking.
Read more details here.
According to EA games, BF2042 Unknown Error is a server-related issue. The Battlefield 2042 servers are overload and not meeting the demand from players.
You can try this workaround,
EA games posted the following:
IF YOU’VE MET OUR FRIEND ‘UNKNOWN ERROR’ – SIT TIGHT.
THIS ISN’T ON YOUR END, WE’RE JUST SCALING UP ALL OF OUR SERVERS TO MEET THE DEMAND
Once all the servers go online, this error will disappear. In the meantime, patience is required.