[CLIENT] It wouldn't let us surrender at 3min

Our fifth person said he was in a very long load screen. I guess the client didn't register that he didn't connect, because he was in that screen. We tried over and over to surrender so we didn't get a lose. After the 6-7 minute mark he connected. by then they had first mid turret down and game was already headed downhill. That's annoying. here is a match history of the game if it is needed. http://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/2521126012/207500997?tab=overview