NA Server issues
I don't know if there are issues in other places in the world but I know the NA servers are always crashing and lagging out (especially since the new patch and log in). I believe this may be due to new bugs, possible hackers (I heard about a group called lizard squad). Or there is also that possibility that riot is focusing on the upcoming world series and is busy dealing with that at the moment. If you guys are having the same issues don't worry, I think they will fix them by the next patch.