There is something wrong with the game

My entire team was complaining about lag, very high ping. And I continuously Dc'd throughout the game, and we ended up losing. Now if this doesn't deserve a loss prevented I don't know what does. IT IS NOT MY INTERNET, lets put that out there. It's only on League, our internet DOES NOT DROP. It's up and running fine, I just keep dc'ing. Yesterday, I got a survey message on League, asking about if I was experiencing lag issues etc. i said "No". The very next game I was having huge ping spikes. Now today I just keep dc'ing while my internet is still up. I can still access that internet. This is on Riots end and it needs fixed ASAP.