Subj : Re: Dual wifi connections in Bookworm
To   : bp@www.zefox.net
From : Knute Johnson
Date : Sun Nov 24 2024 16:21:17

On 11/24/24 12:50, bp@www.zefox.net wrote:
> I've now got two wifi connections on my Pi5 running Bookworm.
> Following the latest update a day or two ago both come up
> automatically on reboot connecting to the same access point
> with the same frequency and channel. Using ifconfig it's
> possible to turn them on or off individually.
>
> The internal wifi shows a ping time of 5-10 ms, the USB
> external Archer T3U is generally under 2 ms, perhaps because
> it reports a stronger (~95% vs 75%) signal strength.
>
> Using both interfaces together seems to result in much worse
> performance than either one alone, which I didn't expect at all.
> Ping times reach tens of seconds under load, for example. The
> effect relliably appears a few seconds after applying the load
> using the chromium browser.
>
> I'm a little surprised that two interfaces are worse than one.
>
> Has anybody else seen this behavior?
>
> Thanks for reading,
>
> bob prohaska
>

I'm curious, what is the point?  Do you want it to go faster, use a
wire.  Are you going to connect them to different access points?  Do you
have two different networks?  You can plug in multiple USB NICs as well.

--

Knute Johnson

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