I think what's strange is how the lag spike came by too
I've played this since beta (over 1000 games played), and recent two weeks, i had lag spikes where my ping would shoot to 500, then 999 and then attempt to reconnect
And you know your ISP is fine because you can use the internet, go on the forum, even go on another online game!
Reconnecting the game usually works, but still takes 2 3 minutes
Whats worst is, i've only had this in the midst of teamfights after i died, it seems like too much particle or things happening and the server simply cannot handle it