Raspberry Pi 5 & qBittorrent nox firewalled

[EwieNaiad 0]

Hello,

I write this message for help because, I try many things, I read many message about this problem but I can't find the solution.

I have a totally working setup with a **Raspberry Pi 3 B+** with *qBittorent nox (v4.6.2)*, *AirVPN* and *port forwarding* working with *openvpn* on *Raspbian 11*.

I want to upgrade my setup with a **Raspberry Pi 5**. I use new version of *qBittorent nox (v5.0.1)*, *hummingbird* CLI to use VPN and *port forwarding* with *AirVPN* on *Debian 12*. I try many things, but I can't make it work. When I check *Your forwarded ports* page, I see *Connection refused (111)*.

My configuration is:

Connection > Listening Port
- Use only uTP
- Port: forwarded port
- Use UPnP / NAT-PMP port forwarding from my router: off

Connection > Connections Limits
- Global maximum number of connections: off
- Maximum number of connected peers per torrent: off
- Global maximum number of upload slots: off
- Maximum number of upload slots per torrent: off

Speed > Rate Limits Settings
- Alternative global rate limits: off
- Apply rate limit to transport overhead: off
- Apply rate limit to peers on LAN: off

BitTorrent
- Torrent Queueing: off

I try to let configuration as native too, but it doesn't work.
I try to disable firewall with `ufw` or to enable it, but it doesn't work.

BUT, it works with *transmission*! Everything is working and I see *Port is open* on *Your forwarded ports* page. When I use some tools to verify IP address, I see my VPN IP address.

Some I don't understand what with my qBittorent configuration. I try to use *qBittorent nox (v4.6.2)* but it doesn't work too, even if I use config from my Raspberry Pi 3 B+.

In best case, I have qBittorent firewalled as *Connection status*, and worst case, I have *Disconnected*. However if I disabled VPN, everything is working.

So, I'm sorry if it's similar to other message, but I can't find the solution. I hope you can help me.

I can provide more information if needed.

Thanks you.

Edited ... by EwieNaiad

[OpenSourcerer 1435]

You want to bind qB to the VPN interface. In ~/.config/qBittorrent/qBittorrent.config, look for the [Preferences] section and add or edit:

Connection\Interface=tun0

Restart the running nox client.
 

3 hours ago, EwieNaiad said:

- Use only uTP

I'd also recommend to only use TCP. uTP != UDP, and uTP in a VPN tunnel is detrimental to the protocol performance.

[EwieNaiad 0]

Thanks for your answer!

I added this line to my config. It still didn't work but in the way of your answer, I change `Optional IP address to bind to:` into *Tools/Options/Advanced*, I set *X.X.X.X* (IP of AirVPN like I can see in sessions). And now it works!

I set only TCP, so I change `.ovpn` configurator file to TCP and my VPN service use now TCP file, I check IP address with some tools and it's okay. Connection status of qbittorent is now Connected.

I think it works now, what do you think about this config?
I don't know why it works without this on my old config.

[OpenSourcerer 1435]

3 hours ago, EwieNaiad said:

I set only TCP, so I change `.ovpn` configurator file to TCP and my VPN service use now TCP file

Don't force OpenVPN into TCP. This is even more detrimental to the performance, but additionally it will affect everything you are tunnelling through the VPN. Stay with UDP for the tunnel if it is not restricted and only set qB to TCP. You don't need to "match" the tunnel with what you want to tunnel. In fact, it is nonsensical.

[EwieNaiad 0]

Thanks you for your time and yours answers!