I've been playing League of Legends for around two years, during that time my ping has been a solid 78. About a year ago my ping had spiked to 80 (yes I know, not a big deal) but I would also get multiple disconnects, so I called my ISP and they installed a new modem, this solved my problem. The past few weeks my ping has been anywhere between 80 and 250 and fluctuating around 40-50 ms every game. I called my ISP again and they said there were some loose wires outside on the house and they tightened them and if I had anymore problems to call them back. Their tightening of the wires did nothing and I had to called them back, they just came today to install a new modem which did not help. After they installed it I had 89 ping then I tested it again about 3 hours after I had a ping of 180. I have also ruled out my router by plugging directly into my modem. Also, I have ruled out my ethernet cable by using others.
I've seen a few people with these issues I just wanted to share my story. Any insight as to why this is happening or how to fix this would be greatly appreciated.
I have 5mb down and 1mb up connection, **** I know but its the best I can get out here and it has never been a problem before. Using speedtest.net I used to average a ping of 20 but just recently, before they replaced my modem, I was getting pings of ~80. Now that they replaced my modem I am back to getting pings of 11-30 on speedtest.net
tl;dr: Ping used to be a solid 78, now its 80-250.
PS: I just played a game and my ping was 250-310. :/