wlan0: Failed to initialize sched scan

[R C]

Actually, what I found out is that  it happened after an update.

It looks like Ubuntu was able to connect to 'hidden' SSIDs, vlans on 
wireless APs that do not broadcast their SSID

When I turned on SSID broadcasting on that Cisco AP, it just connected 
to it.


thanks,


Ron


On 5/1/25 11:35, Liam Proven wrote:
> On Wed, 16 Apr 2025 at 19:26, R C <cjvijf at gmail.com> wrote:
>> Hello,
>>
>>
>> I am running ubuntu 20.04 on an RPI.  It was working correctly, and
>> didn't update it in a while(because of some custom software that has
>> kernel deps.)
>>
>>
>> But at some point, when it boots it throws the msg "wlan0: Failed to
>> initialize sched scan"  and refuses to connect to the wireless network.
>>
>>
>> Any ideas what happened and how to fix it?
> Plug it in with Ethernet, do a full update?
>
> Make a copy of the SD card for safe keeping and try upgrading to 22.04?
>