Random disconnects

Hello,

I have some strange problems going on with my connection while I'm playing league of legends. The last 2 months or so, I get these random disconnects every game, like at least three each game. These are always unannounced, I get lag maybe 1 second before it happens and suddenly everything stops for +/- 10 secs + the disconnect message. Strange thing is, my internet is always working. Discord is still running, I'm still talking to my friends. Other games I play never show these sudden connection lags. Another weird thing, my in game ping never raises, like it's denying that I'm lagging. I have a friend who seems to have the same problem, but less frequent than me (random disconnects without warning).

I would really like to know if I can do something about that, because sometimes it gets unbearable. One time I couldn't get past an inhibitor for a few mins because it kept disconnecting and reconnecting in base.

Some additional information: it happens even when no other programs are running. Usual ping is around 25 ms, throughout the game.

If someone could help me out, thanks! Also, sorry if this is not the right place to post.

Greetings