game loading problem

league of leegdns have problem in loading i dont now why when i select my champ and going to the game i playing few minuts or playing to last of game but sometimes when my internet get off and on or my brother use a little of internet game try to load but its dont loading and when no one using it its happend to and minins get invis champs get invis and its get bug when i reconnect again its like that was pleae some one help me i cant play i need to play adn complate missions for yasuo skin