Diamond final ring code shoe: abandonment penalty

Great game, great RP, excellent position for final ring, top three squads. Right as final ring begins to close absolutely massive lag hits. I’ve had zero connectivity issues for several days, and find it extremely suspect that this happens right at the end of the game. Not only does it feel like I got cheated out of a win but upon trying to log back in I’m faced with -160 RP penalty, when I was moments away from being + 200 to 300. Leaves a very bad taste in my mouth. It feels like someone cheated and attacked the server, and to add insult to injury I am penalized by the game for it. Honestly makes me want to quit playing.