Hello @imsoflattered_ sorry to see you have been affected by one of the 4-0 error codes.
If playing on PC, could you please open your gamesettings.ini file in a text editor, then change the value "UseProxyAutoDiscovery" from 0 to 1 and then save this file. This was known to help some players on PC prevent the 4-0 error codes from occurring in-game.
If this does not prevent the error code from appearing, would you please make sure to follow all the steps in our connectivity troubleshooting guide, as this contains the most common steps for improving a player's connection to the game to the game's servers, based on your platform >
https://ubi.li/YPwnl
If you continue to see this error code after following these steps, please let me know. Whilst we can not guarantee you will never see this error code again and disconnection, you shouldn't be experiencing it every day on each game session.