Before I have had more success using the non-free Broadcom Sta package
https://packages.debian.org/bullseye/broadcom-sta-dkms You most likely
have to blacklist the b43 driver for that to work.

Grtz.

Nick

On 17-03-2022 20:32, Joel Roth via Dng wrote:
> Thanks to Aitor (twice), Steve, Gregory, Simon for your
> informative suggestions.
>
> Associating my broadcom bcm43228 adapter with the wifi
> router has been hit-and-miss, mostly miss with a rare,
> inexplicable success.
>
> I tried the usual suspects - upgrading the system,
> removing and reinstalling/reinserting the drivers.
>
> It's not worth beating my head much more over this dodgy
> driver. I can manage without wifi for now, at least until I
> can find a linux-friend USB wifi dongle.
>
> To respond to Steve, for 10+ years I've never had problems
> with wpa_supplicant. Perhaps bugs in the wifi hardware or
> FIRMWARE have caused your wpa_supplicant to hang. Anyway
> you have a solution.
>
> Again, thanks to all for your generous help.
>
> joel
>
> On Fri, Mar 11, 2022 at 09:21:54PM +0100, aitor wrote:
>> Hi Joel,
>>
>> On 11/3/22 20:40, Joel Roth via Dng wrote:
>>> Hi wifi veterans,
>>>
>>> I recently migrated my chimaera system to new hardware. The
>>> wifi adapter is Broadcom BCM43228. Installing the
>>> firmware-b43-installer package got this adapter working
>>> normally.
>>>
>>> After doing an apt-get upgrade, I can get a a wifi
>>> connection, for example using wpa_gui, however dhclient just
>>> times out.
>>>
>>> Do you have any suggestions for how to troubleshoot this?
>> Did you clear the ip addreses? I use the command below together with ifupdown:
>>
>> #|ip addr flush dev wlan0|
>>
>> Another way might be to force DHCP client release your ip:
>>
>> # dhclient -r wlan0
>>
>> # rm|/var/lib/dhcp/dhclient.wlan0.leases (!! Not sure about the name of the
>> file storing the leases)|
>>
>> # dhclient wlan0
>>
>> This way you reacquire a fresh ip from the DHCP server.||
>>
>> HTH,
>>
>> Aitor.
>>