Torrenting crashes internet connection

This only started happening recently, when I torrent something it crashes the router after a while. I noticed with uTorrent it happens almost immediatly and with qBittorrent only after like 10 minutes.
I have to reset the router to get it to work again.

IP flooding protection is off and I cant find anything in my router settings that would limit connections in any way. The weird thing is, it worked fine until like half a month ago, and I didnt really change anything.

Thanks in advance!

Reduce the number of simultaneous connections in your bittorrent client. What is likely happening is that in the router the open connection list table is getting full and once full can no longer accept new connections until some of the existing ones time out.

See: Here.