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From: <bp@www.zefox.net>
Newsgroups: comp.sys.raspberry-pi
Subject: Re: Spontaneous locale change on Bookworm
Date: Tue, 24 Sep 2024 15:25:35 -0000 (UTC)
Organization: A noiseless patient Spider
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Lawrence D'Oliveiro <ldo@nz.invalid> wrote:
> 
> Just a wild guess, but could you have two different networks with SSID
> “d-link.zefox.net”, with different authentication info? So what you
> are seeing is failures connecting to one and successes with the other?

Physically I don't see how that's possible, unless there's another
access point within range using the same SSID set up by somebody
else. My router has no documented ability to use more than one SSID
and has been in use for several years, long before the Bookworm setup.

Putting wavemon in scan mode shows something like:
┌─Scan window──────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│                                                                                                                              │
│d-link.zefox.net 00:13:46:86:6D:0C  93%, -45 dBm, ch   2, 2417 MHz ESS                                                        │
│millerhome2      F0:72:EA:49:C6:4A  63%, -66 dBm, ch   6, 2437 MHz ESS, Radio Measure                                         │
│ATT5Zavd8s       08:9B:B9:01:B7:14  63%, -66 dBm, ch   6, 2437 MHz 7 sta, 16% chan, Radio Measure, Spectrum Mgmt              │
│ATTKXEBVbA       DC:8D:8A:5A:D6:D4  64%, -65 dBm, ch   6, 2437 MHz 17% chan, Radio Measure, Spectrum Mgmt                     │
│<hidden ESSID>   7C:9A:54:FC:7E:7A  73%, -59 dBm, ch   6, 2437 MHz ESS, Radio Measure, Spectrum Mgmt                          │
│<hidden ESSID>   7C:9A:54:FC:7E:7E  73%, -59 dBm, ch   6, 2437 MHz ESS, Radio Measure, Spectrum Mgmt                          │
│cross            7C:9A:54:FC:7E:79  73%, -59 dBm, ch   6, 2437 MHz ESS, Radio Measure, Spectrum Mgmt                          │
│<hidden ESSID>   7C:9A:54:FC:7E:7C  74%, -58 dBm, ch   6, 2437 MHz ESS, Radio Measure, Spectrum Mgmt                          │
│millerhome2      F0:72:EA:49:C6:4D  41%, -81 dBm, ch 149, 5745 MHz ESS, Radio Measure                                         │
│Xfinity Mobile   7C:9A:54:FC:7E:85  40%, -82 dBm, ch 157, 5785 MHz 1% chan, Radio Measure, Spectrum Mgmt                      │
│<hidden ESSID>   7C:9A:54:FC:7E:84  50%, -75 dBm, ch 157, 5785 MHz ESS, Radio Measure, Spectrum Mgmt                          │
│cross            7C:9A:54:FC:7E:81  50%, -75 dBm, ch 157, 5785 MHz ESS, Radio Measure, Spectrum Mgmt                          │
│<hidden ESSID>   7C:9A:54:FC:7E:86  51%, -74 dBm, ch 157, 5785 MHz ESS, Radio Measure, Spectrum Mgmt                          │

These entries change every few scans, and I don't know what the hidden ESSID entries represent.

Thanks for writing, and any insights!

bob prohaska