Any 1 alse also got high ping? (180-500ms).

Make sure when you play league you are not downloading anything or have programs running in the background that might be using your internet. Also if your internet is shared among others make sure they don't download or use up the net too.

Here's a useful link from Riot that you should review: https://support.riotgames.com/hc/en-us/articles/201752664-Troubleshooting-Connection-Issues

yes i've had this before as well, closed everything that consumed Internet except League still kept climbing. i closed league after i got up too 300K