Constant high ping on EUNE

So for the past week i've been having problems with ping while playing LoL and it's always happening at like 8 PM. I've tested my internet and it's fine even tried to download stuff still going top speed but when i'm in game i get 170 ping constant and i really don't know what do do. Any help would do really, thank you
Report as:
Offensive Spam Harassment Incorrect Board