pfSense 2.6.0 High latency and packet loss.

Gerard64

@thenarc Well the modem seems to work well ping times are way lower wen i connect a pc directly onto it but with the modem connected to the pfSense wan ping times are high again.

That would be interesting to know how your new hardware will work out at your place with the i225 nic(s).

Thank you for your help this far.

Gerard64

@thenarc btw somebody suggested to uncheck all the offload options reboot en test again. I did that few minutes ago but ping times still high around 850ms.

stephenw10

To be cleat the 45 and 102ms latency you saw was pinging from a laptop dircetly connected to the modem to the ISPs gateway IPs?
If so that's still very high. 102ms is about what I see over a VPN from London to Austin!

Steve

Gerard64

@stephenw10

Yes laptop directly connected to the modem.
45 and 102 milliseconds still high oke thanks, good to know.

I am used to peaks of > 650 ms.
Then 45 and 102 sound a lot less.

Still big difference between pfSense and laptop directly onto the modem.

Wen i ping from pfsense with source wan to the isp gateway while doing a speedtest on dslreports.com ping peaks to ~ 1000ms.

I unchecked all the offloading in pfSense rebooted.
Test again no change

stephenw10

Are all of those whilst running a speedtest?

You would expect to see higher ping times when the line is congested without any shaping to prevent that.

Have you tried running a buffer-bloat test?

Gerard64

@stephenw10
yes all ping tests I do are with dslreports.com/speedtest running

on dslreports bufferbloat is a D

on https://www.waveform.com/tools/bufferbloat:

3th bufferbloat test:

Gerard64

@stephenw10
Wen i setup the codel limiters like it is explained in the docs.
and then test it with a speedtest the wan stopts working all together i can't reach anything anymore on the Internet.

stephenw10

Do you see that same level of buffer-bloat with the laptop just connected to the modem?

That's a pretty bad connection if so.

Gerard64

@stephenw10
yes it is the same and yes very bad connection. That is what i try to figure out what and were is the problem exactly so i can think of the fix but before i can fix something i need to know exactly were the problem is.

First of all the internet connection is bad even with a system directly on the modem so that's what i know for sure.

Wen i connect my pfSense netwerk to the modem the ping peaks are way higher en bufferbloat also more bad.

Is there a relation between the two maybe?

Another weird thing is wen i use the codel limiter the wan blocks all traffic maybe there is a relation with the bad ping or maybe i configured the floating rule wrong of created the limiters wrong. I read them multiple times over but all seems like it is in the docs.

Cool_Corona

@gerard64 Check all cables and replace them.

Report back.

Gerard64

@cool_corona
I did all that already
tested all cables temperarly replaced them

I connected a 20 meter cable from modem to the pfSense wan. No change.

stephenw10

Do you have the captive portal enabled at all?

Gerard64

@stephenw10
I use the captive portal in a wlan network yes but not in my normal lan.

stephenw10

Ah, then you will hit this: https://redmine.pfsense.org/issues/12954
It's fixed in 2.7 and 22.05. You could upgrade to either of those as a test.

With a link exhibiting buffer-bloat that badly you probably need shaping of some sort.
You could try using an ALTQ shaper instead.

Steve