Extremely slow / Low connections

[Nicnivian]

Hi, all.

I have been ripping my hair out all morning trying to solve this issue. My Deluge client is downloading unbearably slow.

Downloading a torrent and adding it to both Deluge and qBittorrent; Deluge will hit a maximum of around 100-200kb/s but generally around 20-40kb/s, while qBittorrent will hit 10mb/s (basically saturating my connection speed)

Just going to do a massive information dump here for troubleshooting.

OS: Windows Server 2012 R2
Router: Netgear Nighthawk R8000
Deluge ver: 1.3.12
libtorrent ver: 1.0.6.0

Speedtest result


Settings screenshots:

Network


Bandwidth


Status bar (bottom of Deluge main windows)

The low amount of connections is what I believe to be the problem. But I don't know.

Router UI with ports forwarded


Port check (http://www.canyouseeme.org/)


I really appreciate any help you can offer, and I will be doing my best respond to any questions immediately.

Thank you so much.

[Shryp]

Have you tired using a different port for outgoing? Or maybe click the random port box for outgoing port.

[Nicnivian]

Have you tired using a different port for outgoing? Or maybe click the random port box for outgoing port.

Yeah, I have.

I've tried forwarding a few different ranges, different ports for both in and out, and I've even set random and used UPnP. Everytime I do this, I confirm that the service can be seen on those ports. Both in the program (using the built in port checker) and through canyouseeme.org.

[Snackbar]

Use random outgoing ports and never, ever turn on UPnP in your router again.

[Nicnivian]

Use random outgoing ports and never, ever turn on UPnP in your router again.

Sorry, UPnP is on in that screenshot because I was trying EVERYTHING. Normally, I have a static port and UPnP off.
Still. as I said above, that makes no difference.

[Cas]

There should be no difference with qbittorrent so settings are the likely issue. Find out what version of libtorrent qbittorrent is using and use the ltconfig plugin to directly compare settings.