Thank you very much Beniamino Galvani,
 I tried b43 driver and the performance was very poort for my BCM4331
(macbook pro) wifi. Hence I moved to wl.
I give it another try

On Mon, May 10, 2021 at 8:07 AM Beniamino Galvani <bgalv...@redhat.com>
wrote:

> On Mon, May 10, 2021 at 01:32:59AM +0100, Bhasker C V via
> networkmanager-list wrote:
> > Hi,
> >
> >  My wifi works (thanks for bwtnguy who pointed me to the issue)
> > However when I turn on
> > wifi.cloned-mac-address=stable
> > The NM does not connect to wifi anymore.
> >
> > My driver is wl. I use it with  BCM4331 chip wifi card.
> > debian bullseye (NetworkManager==1.30.0 wpa_supplicant==v2.9)
> > Is this a known issue? Is there a fix for this ?
>
> Hi,
>
> this is a known issue, the Broadcom wl driver doesn't work well if the
> MAC is changed. Unfortunately the driver is closed and so only
> Broadcom can fix this problem.
>
> According to this [1] the 'b43' open source driver supports
> BCM4331. You could try if it works better.
>
> [1] https://help.ubuntu.com/community/WifiDocs/Driver/bcm43xx
>
> Beniamino
>
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