I keep joining into games 5- 10 minutes late!

Often whenever Ive joined a queue, and the game is loading, a few minutes pass by, then my client will close and bring me back to the original client. Then I have to reconect and wait for the progress bar to fill back up, then itll finally drop me in the game, serveral minutes into it. This has caused me to now get a leave buster twice for something i cant control and i dont get any match rewards. What can I do to fix this problem?