Apparently a Nunu and Sol can disconnect a player

I have no idea, but this is stupid. A combo between the enemy Sol and friendly Nunu W disconnected me.

I have no idea how, but my internet was working and I even checked the moment I disconnected. I had to close the game to reconnect, but by that time the game ended.

https://my.mixtape.moe/wdpjqs.webm Literally the moment Nunu W is close to me and at that time Sol ulted too.

This is stupid. Sorry about the link in the title(copied the wrong one) and the quality, not sure why is so low.