happens to me about once a day when im hosting a game. its really ****ing annoying because everyone gets mad a me for ending it, when it is just some stupid glitch that happens every so often.
it happened to me when i was using a wireless lagg switch. its because i left the switch on for too long and my connection became so bad that the game ended. so it might be cuz ur connection is bad
This happened to me and I found out the problem. My ports were wrong so I redid it. Or you can just not use your ports and use DMZ instead. After I did this I was able to host again.