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So I have now changed the version again

OPNsense 23.7.12_5-amd64
FreeBSD 13.2-RELEASE-p7
OpenSSL 1.1.1w

now my performance is much better again!
https://www.waveform.com/tools/bufferbloat?test-id=80fbf079-8efa-48a3-9675-ae99a22775e2

That sounds like a bufferbloat problem. Some setups show that behaviour, especially when upstream and downstream are asymmetric. There is a good test for this here.

It often shows more when a high BDP is present, such when the other side of a connection has a high latency.

I am at a loss as to why this should happen with 24.1, but probably something has changed in the network stack - I cannot tell since I have not updated yet. Sometimes the bottleneck is outside of OpnSense itself, like when the modem or ONT has too small (or too big) buffers. You can (sometimes) fix this by using a traffic shaper that limits your up- and/or downstream to what your ISP delivers in order not to overwhelm the connection.

Thanks for your tip, but unfortunately the settings have not led to any improvement for me.
https://www.waveform.com/tools/bufferbloat?test-id=641f82dc-3a99-45ce-9bdc-042fc3cd1981

Hi, I have a similar problem since the upgrade to 24.1. As soon as I run a larger download via Steam or PSN, the download rate drops from 1gb/s to about 400mb/s and for the remaining network clients the internet breaks down.   

The hardware does not show high CPU or RAM utilization. I am also a bit at a loss as to the best way to proceed.

My setup:
OPNsense: 24.1.1-amd64 FreeBSD: 13.2-RELEASE-p9 OpenSSL: 3.0.13

Hardware: Low Energy Server LES compact 4L (https://www.thomas-krenn.com/de/produkte/rack-server/technisches-datenblatt/frame.only_content/key.21578.html)

CPU type: Intel(R) Celeron(R) CPU J3160 @ 1.60GHz (4 cores, 4 threads)
RAM: 4GB

Vodafone Cabel ISP

I am grateful for any tips :)

Mario Kart P2P works for me even with the outbound NAT rule and doesn't even need upnp, but Minecraft has problems even when I release the full port range.
And that amazes me.

If I open a wifi hotspot via the cell phone, the Switch even gets only a Type D Nat but Minecraft works, all very strange... I can not figure out what is wrong with me

Versuche es nun nochmal in Englischen Bereich  :)
(https://forum.opnsense.org/index.php?topic=26256.0)

Hi,

I switched from a FRITZ!Box to the OPNSense about a week ago.
I'm also really happy with the decision, could solve all the "problems" so far also the general
Online Gaming with my daughter's Nintendo Switch.

Except for Minecraft on the Nintendo Switch....

I created an outbound NAT for the Nintendo Switch which puts it on a Type B Nat, but no matter what I do I can't connect to any Minecraft servers, it always comes up with the message No connection to the world.

Does anyone have any advice for me?

I have attached a few pictures for you :)

[Keine Verbindung zur Welt.]

Hallo,

ich bin vor ca. einer Woche von einer FRITZ!Box auf die OPNSense umgestiegen.
Bin auch echt glücklich mit der Entscheidung, konnte bis jetzt auch alle "Probleme" lösen auch das allgemeine
Online Gaming mit der Nintendo Switch meiner Tochter.

Bis auf bei Minecraft auf der Nintendo Switch...

Ich hab für die Nintendo Switch eine Outbound NAT erstellt was sie auf ein Typ B Nat bringt, aber egal was ich mache ich kann auf keine Minecraft Server connecten, es kommt immer die Meldung Keine Verbindung zur Welt.

Hat da wer ein Rat für mich?