For both brcmfmac v234 and V286, kernel is:
Linux nas6 7.2.4-300.fc45.aarch64 #1 SMP PREEMPT_DYNAMIC Mon Sep 7 19:12:27 UTC 2026 aarch64 GNU/Linux
Comparison of before and after upgrading the 6 wifi packages using dmesg | grep brcmfmac:
::::::::::::::
before_linux-firmware-20260910-1.fc45.just-brcmfmac
::::::::::::::
[ 7.916539] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
[ 7.917149] usbcore: registered new interface driver brcmfmac
[ 8.143037] brcmfmac: brcmf_c_process_txcap_blob: no txcap_blob available (err=-2)
[ 8.143274] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/6 wl0: Apr 15 2021 03:03:20 version 7.45.234 (4ca95bb CY) FWID 01-996384e2
::::::::::::::
[ 10.265633] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
[ 10.265775] usbcore: registered new interface driver brcmfmac
[ 10.483635] brcmfmac: brcmf_c_process_txcap_blob: no txcap_blob available (err=-2)
[ 10.484624] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/6 wl0: Oct 28 2024 23:27:00 version 7.45.286 (be70ab3 CY) FWID 01-95efe7fa
[ 91.521694] brcmfmac: brcmf_dump_obss: dump_obss error (-52)
NB the -52 error that was not there until V286.
Comparison of AP availablity (mine are LEGGWLAN and LEGGGUEST on a UK EE Hub):
# cat before_linux-firmware-20260910-1.fc45-nmcli-device-wifi-list
IN-USE BSSID SSID MODE BAND CHAN RATE SIGNAL BARS SECURITY
BE:0F:F3:4B:60:97 DIRECT-97-HP OfficeJet Pro 9730e Infra 2.4 GHz 6 65 Mbit/s 94 ▂▄▆█ WPA2
* 3C:58:36:2B:A2:E4 LEGGWLAN Infra 2.4 GHz 1 195 Mbit/s 89 ▂▄▆█ WPA2 WPA3
92:58:36:2B:A2:E5 EE WiFi Infra 2.4 GHz 1 195 Mbit/s 87 ▂▄▆█ --
92:58:36:2B:A2:E7 LEGGGUEST Infra 2.4 GHz 1 195 Mbit/s 87 ▂▄▆█ --
92:58:36:2B:A2:E8 -- Infra 2.4 GHz 1 195 Mbit/s 87 ▂▄▆█ WPA3
EC:FD:F8:22:51:EE AP_2361625852 Infra 2.4 GHz 1 135 Mbit/s 67 ▂▄▆_ WPA2
58:D6:1F:C8:D3:31 CHEEKYCP Infra 5 GHz 48 1170 Mbit/s 39 ▂▄__ WPA2 WPA3
# cat after_linux-firmware-20260910-1.fc45.-nmcli-device-wifi-list
IN-USE BSSID SSID MODE BAND CHAN RATE SIGNAL BARS SECURITY
BE:0F:F3:4B:60:97 DIRECT-97-HP OfficeJet Pro 9730e Infra 2.4 GHz 6 65 Mbit/s 95 ▂▄▆█ WPA2
3C:58:36:2B:A2:E4 LEGGWLAN Infra 2.4 GHz 1 195 Mbit/s 89 ▂▄▆█ WPA2 WPA3
92:58:36:2B:A2:E8 -- Infra 2.4 GHz 1 195 Mbit/s 89 ▂▄▆█ WPA3
92:58:36:2B:A2:E5 EE WiFi Infra 2.4 GHz 1 195 Mbit/s 89 ▂▄▆█ --
92:58:36:2B:A2:E7 LEGGGUEST Infra 2.4 GHz 1 195 Mbit/s 87 ▂▄▆█ --
EC:FD:F8:22:51:EE AP_2361625852 Infra 2.4 GHz 1 135 Mbit/s 69 ▂▄▆_ WPA2
58:D6:1F:C8:D3:31 CHEEKYCP Infra 5 GHz 48 1170 Mbit/s 39 ▂▄__ WPA2 WPA3
Note failure to connect to LEGGWLAN with V286 brcmfmac (I know; it may not be exactly that package that is the cause!)
The EE Hub wifi has 2.4GHz enabled and 5GHz too.
The 'Security Type' setting is: 'WPA3-Personal-Transition'.
The command 'journalctl | grep wlan' shows this connection error:
Sep 12 10:02:14 nas6 wpa_supplicant[796]: wlan0: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="LEGGWLAN" auth_failures=1 duration=10 reason=CONN_FAILED
Do you still need a bugzilla bug report?
:D
Yes, reverting to brcmfmac 7.45.234 makes it start working again. How to narrow down which of those 6 updates did the damage?I don't believe any of them did the "damage" but the brcmfmac firmware is in the named package. Also you don't report what kernel version you're using. The new firmware works for me across all my RPi5's so there's likely more nuance to the problem. Like what sort of AP are you connecting to, what WiFi standards it is using etc. The problem with WiFI (and bluetooth for that matter), it's it's not as simple as just a driver or firmware, but also things like the versions of standard that your AP supports and numerous other things. I would start by reporting a bug with all useful information against linux-firmware (the root package of the firmwares) and we can take the discussion there (yes, I am the linux-firmware maintainer) but you need to put the complete story.:D On 11/09/2026 16:23, Peter Robinson wrote: Hi David, Anybody interested in the details? rc Depends on what you mean by details. Not sure exactly which of these updates does it: Well there's only one of those that are brcmfmac wifi firmware ;-) But also I've tested this on all 3 of my RPi5's and none of them are seeing a wifi regression with that firmware update. With a 'dmeg | grep brcmf' I get the following with the new 7.45.286 FW (the old one was 7.45.234) being reported: [ 7.867322] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6 [ 7.869860] usbcore: registered new interface driver brcmfmac [ 8.056278] brcmfmac: brcmf_c_process_txcap_blob: no txcap_blob available (err=-2) [ 8.056547] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/6 wl0: Oct 28 2024 23:27:00 version 7.45.286 (be70ab3 CY) FWI :D # !dnf dnf distro-sync Updating and loading repositories: Repositories loaded. Package Arch Version Repository Size Upgrading: brcmfmac-firmware noarch 0:20260910-1.fc45 updates-testing 9.5 MiB replacing brcmfmac-firmware noarch 0:20260810-1.fc45 fedora 9.5 MiB iwlwifi-mld-firmware noarch 0:20260910-1.fc45 updates-testing 23.4 MiB replacing iwlwifi-mld-firmware noarch 0:20260810-1.fc45 fedora 20.2 MiB iwlwifi-mvm-firmware noarch 0:20260910-1.fc45 updates-testing 62.7 MiB replacing iwlwifi-mvm-firmware noarch 0:20260810-1.fc45 fedora 62.7 MiB linux-firmware noarch 0:20260910-1.fc45 updates-testing 48.7 MiB replacing linux-firmware noarch 0:20260810-1.fc45 fedora 50.0 MiB linux-firmware-whence noarch 0:20260910-1.fc45 updates-testing 462.2 KiB replacing linux-firmware-whence noarch 0:20260810-1.fc45 fedora 449.3 KiB realtek-firmware noarch 0:20260910-1.fc45 updates-testing 6.9 MiB replacing realtek-firmware noarch 0:20260810-1.fc45 fedora 6.9 MiB -- _______________________________________________ arm mailing list -- arm@lists.fedoraproject.org To unsubscribe send an email to arm-leave@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/arm@lists.fedoraproject.org Do not reply to spam, report it: https://forge.fedoraproject.org/infra/tickets/issues/new
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