qBittorrent official forums

I have set a random port  in QBT and restarted QBT.
Im using UPnP.
If testing the port with http://www.canyouseeme.org/ i get SUCCESS.
If i then start my VPN(PPTP) and check the port i get ERROR.

What do i need to do to run QBT through my VPN?

Im on win7 and QBT306

You will be always firewalled through VPNs. You can't become active that way.

More info on this if anyone finds this topic:
When you use a VPN, you use the VPN's ports. The VPN is closed however.
IF it would have open ports (even just for a few clients), they could trace you down.
(And if they would open ports, you could run any service through the VPN. That would be a disaster.)

So it's both a privacy and business decision.