League of Legends (LoL) Question: Ranked continuous disconnection

When I'm playing ranked, I seem to have major lag spikes at the same time as my team. At first I thought it was my internet but since everybody is having I have played with seems to have these issues I thought I would ask you all. My internet connection is fine but unless servers are crashing in the middle of my games, I have no clue what is happening. Can somebody help me out with this issue?