(Client) Lobbying problems

I've had this happen a couple of times now, but I'll be in champion select and it will take me back to lobby. After like 3-5 minutes of waiting, it will say please log in again, you are already in a game. I wonder what is going on and then it wont let me reconnect to the game, Keeps saying I don't have an internet connection. I found that this happens more often in ranked then anywhere else.