Game crash, punished for it.

More specifically, i jsut played a ranked game, and we were winning, by a lot, we had first blood because their ADC decided to facecheck a bush alone with 3 of us waiting, i was taking enemies jungle, was 3/0 in about 10 minutes, then my internet crapped out, again. This has ONLY been happening when i play LoL, ill be playing, winning or losing, then my net will crap out for 5-6 minutes, then suddenly come back, without any reason. I did a test and didn tuse LoL for almost a full day without ANY issues, but then loaded up lol and played a game and, net crash.

ANd now because of this ive been given "leaver" status in games, and have lsot half my LP. How is this fair? My team even WON the last game after i crashed, its hard enouhg being stuck in ELO hell, please dont let some random ingame, or client related bug keep me there by punishing me even when im winning.