ERROR 770 Battlefront 2

I have been having this issue too. About every match I play I lose connection and have to wait 5 min and join back on. I checked my WiFi and router and Xbox Live account and everything was normal so the issue doesn’t seem like it’s on my part. It is extremely annoying. I can’t even play a single round of a game for more than 10 min. It keeps saying error code 770. I’m on Xbox 1 S.