On Thursday, December 7th, 2023 at 17:10, Stefan Sperling <s...@stsp.name> 
wrote:
> 
> 
> On Thu, Dec 07, 2023 at 03:39:33PM +0000, Lévai, Dániel wrote:
> 
> > Hi all!
> > 
> > Recently my trusty T410 died (had iwn(4) in it) and had to switch to an 
> > E450 - but this has iwm(4).
> > Never had any issues with iwn(4) and iwm(4) seems to operate perfectly fine 
> > in some scenarios, e.g. speedtest.net indicates 100/100Mbit down/up speed.
> 
> > But downloading a base74.tgz set takes little more than 30 minutes - in 
> > firefox and in console with ftp(1).
> 
> 
> So you are getting 100/100 Mbit on iwm(4) in a speed test, and only 
> downloading
> base74.tgz is slow?

Well, not quite - speedtest.net (whatever it does) seems to report good 
results, browsing however is generally slow, but I can't really set precise 
expectations for let's say "opening youtube.com". It's just slow compared to 
other machines on the same network.
The most concrete thing I could think of was to download the base set which was 
surprisingly slow during the first upgrade after installation. That's why I 
started to investigate; this I can measure and report.

So generally speaking, everything is slow on iwm0 *except* what speedtest.net 
seems to report.

> The speed test being successful would imply that the wifi
> layer is working just fine. If so then something else must be messing with
> your base74.tgz download attempts.
> 
> What happens when you download base74.tgz over ethernet?

No issue, perfect 100Mbit.

> Or with iwm(4) via a different AP?
> Or with iwm(4) via a different ISP?

Thanks for the tips!
I went ahead and tried my cell phone's mobile hotspot.
Even though speedtest.net only reported 30/15Mbit down/up, the general browsing 
experience was much better and managed to squeeze out 2-3MByte/sec while 
downloading the base set from various mirrors.

Switching back to my home AP seems to be the issue.
It's a Zyxel NBG6615 (end of service by now, no newer firmware).
Is there any debug sysctl's I can set on the laptop that could prove useful in 
troubleshooting this? Maybe different settings for iwm(4) or the AP?

Daniel

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