Can someone tell me why i am put in a queue when my internet disconnects me and wont let me back on?

i don't think one should be put into a queue for it being their Internets fault. I was playing a game with 400 ping and my internet disconnected me, it wouldn't let me back on and i had to wait for the game to finish to do anything really. And i was put into a 20 minute queue for it.