al3xhds :
LightningsalesUK :
is there other people using your network? this is unlikely but check to see if your provider has moved has moved its severs or there being changed. it could be that Christmas shoppers are filling up your providers network. i've been experiencing lag spikes when playing League, all it was was that i was seeding to many items on utorrent, its probably something in the background
what sort of background things should i be looking for
so im gussiing your using a laptop?
i am using wireless and has been really good until now. might just be the wireless card
check for anything that could be using up internet. utorrent, steam games downloading, also what type of internet are you using, wirless, wierd, enthernet etc