[Solved, itself, somehow...] Please help me get my speed back.

[VIKINGS]

Hello World,

Yesterday sometime during the day the ethernet cable(where it enters the motherboard) came a bit loose/wasn't making the connection properly, I figured that out when I first noticed in qbit that my speeds where trash, then I did a speedtest.net and indeed my speed was about 10% of what it should have been.

So I jiggled the cable a bit and everything went back to normal, everything that is apart from qbit!!
I have no idea how/why/what changes got applied under the hood(because my connection became unstable I assume?), or what applied them(was it qbit itself, or the OS, or...) but the speeds are still utter trash.

To clarify speedtest.net now reports everything back in the proper ranges of 800-900 mbps with pings under 20 ms, canyouseeme.org reports my port is still open, so it should work..... And speeds in other places, such as downloads through the browser for example from sites like mega.whatever are fine/fast.

Things I've tried:

- renamed the

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/home/vikings/.local/share/qBittorrent/

and

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/home/vikings/.config/qBittorrent/

folders to get qbit to go back to default settings. Then fired it up, changed only the port(didn't touch any other setting) and added a torrent, still crap. So I put my original folders back.

- not sure if this affects programs such as qbit(shouldn't if I understand it correctly) but just to be safe I changed the dns from the regular adguard one I use to google dns, then to my isp dns, then back to the adguard one. Nothing.

- updated my system this morning which also took qbit from version 5.0.2 to 5.0.3, nada!...


Pretty please, what else can I do?!?!

My system is

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  Kernel: 6.12.4-arch1-1 arch: x86_64 bits: 64
  Desktop: KDE Plasma v: 6.2.4 Distro: EndeavourOS

Let me know if you need any other info.

Thank you in advance.

[Peter]

A cable can't just become slower or faster depending on how snug the connection is.
- Either it connects
- Or it does not

You CAN make a butchered 100mbps cable out of a 1gbps if you mess up several strands but it has to be done on purpose. It's like a "ghetto split" that people done in the old times. Again, did not happen to you.

- Check your network settings, see if it says 100mbit or 1000mbit
- Check if you are using an actual Cat5E (at least) cable and that it goes to your router's 1gbps capable port
- Check "dmesg" in your OS and see if there is anything. Ie.: Pull cable out, plug it back in, open dmesg. It should say the detected speed, etc.

[VIKINGS]

Uuuummmm, no offence please Peter, really, but I told you exactly/literally what happened. Sometimes when that cable doesn't sit right I get disconnected entirely, but this time it went: connection speed suddenly at 10%-ish of what is should be>jiggled the cable>connection speed back up for everything but qbit.

Heck maybe it's not the cable, maybe it's the slot on the motherboard itself, I don't know(all this is beyond my level of technical knowledge), but my point is if/while there are issues shouldn't the entire system be affected and not just a single program?

To answer your questions:

- network settings says "Connection speed: 1GBit/s";

- it's the same cable I've always used and yes it was always plugged into that port of the router, I didn't touch that part;

- this is what that command showed after unplugging the cable and plugging it back in:

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[ 9433.658855] e1000e 0000:00:1f.6 enp0s31f6: NIC Link is Down
[ 9462.337762] e1000e 0000:00:1f.6 enp0s31f6: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 9470.932165] e1000e 0000:00:1f.6 enp0s31f6: NIC Link is Down
[ 9474.771069] e1000e 0000:00:1f.6 enp0s31f6: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 9477.011904] TCP: request_sock_TCP: Possible SYN flooding on port 1xx.xxx.xx.xxx:4xxxx. Sending cookies.
[ 9485.585493] e1000e 0000:00:1f.6 enp0s31f6: NIC Link is Down
[ 9489.571064] e1000e 0000:00:1f.6 enp0s31f6: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx

[VIKINGS]

So, really, am I stuck like this...?

[Peter]

No, you just have to wait until someone comes along who knows computers.

[VIKINGS]

Ok, well the good news is that just as suddenly my speeds seem to be back up in qbit too, yaaay. The bad news is that now I am even more confused!!!....

Anyone wanna take a stab at explaining WTF actually happened these past couple of days??

P.S. And no, I do not have a metered connection/contract...