Won a ranked game but lost lp.

Ok so basically what happened is i was playing the video game in ranked mode roight. And we are doing ok, i won my lane, the emeny mid rage quit, it was equal even though we had the advantage. All normal. So at one point i get a grey screen and everything on my pc freezes. I wait a few seconds, nothing happens and i restart my pc. It takes long to start up because of the restart but i eventually get back into the game. I play for about 5 minutes and we win the game.

We get to the score screen and i see i lost lp. I personally don't care, i have never cared about ranked but my buddy that i was playing with does, which is why i was playing ranked in the first place. This is a problem because the games screen said i was disconnected when the game finished but i was not. I was there pressing buttons until the victory screen. I don't care if i loose lp but this could really fuck with the whole ranked system and people might loose lp unfairly. Riot please fix this. Come on, it's been 10 years

Also South Africa needs servers ya cheap coonts.