Verified on Plucky:
❯ apt-cache policy wpasupplicant
wpasupplicant:
Installed: 2:2.10-24ubuntu0.1
Candidate: 2:2.10-24ubuntu0.1
Version table:
*** 2:2.10-24ubuntu0.1 100
100 http://us.archive.ubuntu.com/ubuntu plucky-proposed/main amd64
Packages
100 /var/lib/dpkg/status
2:2.10-24 500
500 http://us.archive.ubuntu.com/ubuntu plucky/main amd64 Packages
❯ sudo wpa_cli
wpa_cli v2.10
Copyright (c) 2004-2022, Jouni Malinen <[email protected]> and contributors
This software may be distributed under the terms of the BSD license.
See README for more details.
Selected interface 'wlp4s0'
Interactive mode
<3>CTRL-EVENT-SIGNAL-CHANGE above=1 signal=-56 noise=9999 txrate=156000
> get bss_max_count
1000
and on Noble:
$ sudo wpa_cli
wpa_cli v2.10
Copyright (c) 2004-2022, Jouni Malinen <[email protected]> and contributors
This software may be distributed under the terms of the BSD license.
See README for more details.
Selected interface 'wlP9s9'
Interactive mode
> get bss_max_count
1000
mitchell@device:~$ apt-cache policy wpasupplicant
wpasupplicant:
Installed: 2:2.10-21ubuntu0.3
Candidate: 2:2.11-0ubuntu4~24.04.1
Version table:
*** 2:2.10-21ubuntu0.3 100
100 http://ports.ubuntu.com/ubuntu-ports noble-proposed/main arm64
Packages
100 /var/lib/dpkg/status
2:2.10-21ubuntu0.2 500
500 http://ports.ubuntu.com/ubuntu-ports noble-updates/main arm64
Packages
500 http://ports.ubuntu.com/ubuntu-ports noble-security/main arm64
Packages
2:2.10-21build4 500
500 http://ports.ubuntu.com/ubuntu-ports noble/main arm64 Packages
and on Jammy:
maugustinpersonal@Computito:~$ apt-cache policy wpasupplicant
wpasupplicant:
Installed: 2:2.10-6ubuntu2.3
Candidate: 2:2.10-6ubuntu2.3
Version table:
*** 2:2.10-6ubuntu2.3 500
500 http://us.archive.ubuntu.com/ubuntu jammy-proposed/main amd64
Packages
100 /var/lib/dpkg/status
2:2.10-6ubuntu2.2 500
500 http://us.archive.ubuntu.com/ubuntu jammy-updates/main amd64
Packages
500 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages
2:2.10-6 500
500 http://us.archive.ubuntu.com/ubuntu jammy/main amd64 Packages
maugustinpersonal@Computito:~$ sudo wpa_cli
wpa_cli v2.10
Copyright (c) 2004-2022, Jouni Malinen <[email protected]> and contributors
This software may be distributed under the terms of the BSD license.
See README for more details.
Selected interface 'wlp2s0'
Interactive mode
> get bss_max_count
1000
The desired functional impact was also confirmed (all APs in range
appeared in the congested area), and we have not observed any unexpected
functional issues since deploying this change in QA so far.
** Tags removed: verification-needed verification-needed-jammy
verification-needed-noble verification-needed-plucky
** Tags added: verification-done verification-done-jammy
verification-done-noble verification-done-plucky
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You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to wpa in Ubuntu.
https://bugs.launchpad.net/bugs/2117180
Title:
wpa_supplicant DEFAULT_BSS_MAX_COUNT is too low for populated areas
Status in wpa package in Ubuntu:
Fix Released
Status in wpa source package in Jammy:
Fix Committed
Status in wpa source package in Noble:
Fix Committed
Status in wpa source package in Plucky:
Fix Committed
Bug description:
SRU Justification:
[ Impact ]
In densely-populated areas with more than 200 Wi-Fi APs,
wpa_supplicant's default BSS_MAX_COUNT of 200 causes some nearby wi-fi
APs to only appear inconsistently.
In areas with more APs, setting a higher bss_max_count of 500 via
wpa_cli was sufficient to resolve this issue. Since such dense areas
are now common, it may be appropriate to raise the default to 500 or
1000.
[ Test Plan ]
Run an nmcli scan in an area with 500+ APs, with and without the
described wpa_supplicant change. Confirm that the change results in
all expected APs being present.
[ Fix ]
Bump the DEFAULT_BSS_MAX_COUNT to 1000
[ Where problems could occur ]
It's conceivable that there could be differences in time required to
scan / enumerate more APs
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/wpa/+bug/2117180/+subscriptions
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