Why do I get no elo, if I discoonect for a few seconds?

My internets a bit shitty and every once in a while my PC disconnects from the WiFi. When playing aoe2 and I disconnect, the game stands still till I have a good connection again and then it speedruns the last seconds, but my opponent should still be able to play the game, right? (Well no one ever wrote anything anormal once I reconnected)
Once the game is finished I do not get any elo, if I won and that doesn't really make sense to me, since I'm the one having the disadvantage.
If I restart the game I still don't get the elo. However if i lose the game I still lose elo points (not that anything is wrong with that)