Yesterday I changed my ISP to one that allows port forwarding. Today the port forwarding has been enabled by the company and I set it up on the router.

After enabling it, my download and upload speed dropped from peaks of 50 MiB/s and valleys of 4-6 MiB/s to a very stable 2 MiB/s. Nothing else has changed in my qBittorrent configuration. If I close the ports again, the speed goes back to normal. I checked if the ports were open on various websites and all of them show that they are forwarded.

I was looking forward to be able to port forward and connect with every possible peer for years, and today has been a big disappointment in that regard!

Has anyone else seen something like this and if so, can you point me to the right direction to fix the problem?

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[–] LodeMike@lemmy.today 5 points 13 hours ago (8 children)

Are you sure nothing else is changing? How long did you do these tests for?

[–] dividedby0@lemmy.dbzer0.com 3 points 13 hours ago* (last edited 13 hours ago) (7 children)

I'm completely sure! Yesterday it was running ok all day. Today, I port forwarded and left home for a couple hours, after coming home I checked the computer and saw the low speed. The first thing I did was think about what had changed and I closed the ports. The speed went up immediately. I tested it a couple more times with different ports and the same thing happened.

[–] LodeMike@lemmy.today 2 points 12 hours ago (2 children)

What the fuck?

Maybe they meter incoming speed? Try running a speedtest using a web server or iperf3 or something.

[–] dividedby0@lemmy.dbzer0.com 1 points 1 hour ago

The speed test looks fine. Maybe they meter it as you say. Guess I'll have to contact them so they can explain wtf is happening to my connection.

[–] _cryptagion@anarchist.nexus 7 points 11 hours ago (2 children)

more likely they just know it's bittorrent traffic. that's not hard for an ISP to sniff out, if you aren't using a VPN. it's not uncommon for ISPs to throttle bittorrent traffic automatically.

[–] dividedby0@lemmy.dbzer0.com 1 points 1 hour ago

I would really like avoiding a VPN. Money is tight rn and it's another payment at the end of the month.

[–] cassandrafatigue@lemmy.dbzer0.com 2 points 1 hour ago (1 children)

And the reasons they do it run the gamut from 'mildly shitty' to 'profoundly shitty'.

You might consider routing torrent traffic through multiple old garbage laptops on your network, then putting your regular traffic through on an 'unforwarded' looking computer at full speed? Might work.

[–] dividedby0@lemmy.dbzer0.com 1 points 1 hour ago (1 children)

I'll look into it, but I don't think this is something I would be capable of doing. Would a couple of raspberrys work?

[–] cassandrafatigue@lemmy.dbzer0.com 1 points 22 minutes ago

Yeah but ancient secondhand laptops are about the same price, come with storage, and you're taking ewaste out of circulation.

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