Of course, if they went head to head, both cloudflare and Google would have the resources to fight back while quad9 is just a non-profit.

That’s transmission. My mistake, I somehow got the wrong impression that you had a working transmission set up before.

Glad to hear that everything is resolved :)

https://i.stack.imgur.com/yyyXj.png

Where are you sending from? Home computer? Home computer with VPN? Seedbox? The answer will change based on which.

An easy hack might be to look at your transmission settings, find the port it uses and just copy that into qbittorrent settings.