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From: Lawrence D'Oliveiro <ldo@nz.invalid>
Newsgroups: comp.sys.raspberry-pi
Subject: Re: Dual wifi connections in Bookworm
Date: Sun, 24 Nov 2024 20:34:18 -0000 (UTC)
Organization: A noiseless patient Spider
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On Sun, 24 Nov 2024 18:50:55 -0000 (UTC), bp 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 both interfaces together seems to result in much worse performance
> than either one alone, which I didn't expect at all.

If they are on the same frequency/channel, it’s no surprise they’re 
interfering with each other. Can you set them on different, non-
overlapping frequencies/channels?