Bug splats/"No internet connection"

I've been getting these "bug splats" and it's just so annoying, riot cant fix their stupid game, when i have perfect internet connection, perfect ping, perfect everything. and then i egt a message "For leaving games and being AFK you have been removed from the queue" (20 mins) and its not even my fault. what the fuck? i'll just stop playing this game if u want it so much riot.