It seems lately the majority of instances, someone either leaves or is afk in a dungeon. I cannot tell u how many times I even just get into a fresh instance and people are instantly afk. Need to start banning players for doing that. If you cant make the time for the dungeon, but u can hit the queue accept, you shouldn't be queuing anyway. Or even doing the first 5 pulls, then someone goes afk or leaves for some random reason.