Connection Complaint and Leaverbuster

Yeah about a minute ago i got disconnected at beginning of the game couldn't reconnect to the game and when my friend who was duo queing with me said the game was over it game me a loss for that game. Oh and btw it was a ranked game promos and riot just costed me a promo match. And while back ago had the same issue where i got disconnected and could not connect back then i got the leaverbuster thing and had to type I agree into the box I am just a little fed up with the connection issues to the servers and it say that its my firewall blocking league. PLZ RIOT FIX YOUR EQUIPMENT PLZ