Raspberry Pi OS • Re: Bullseye WiFi not Working (wpa_supplicant, Pi 3B+)

Hi !

Just installed Bullseye lite on a Pi 3B+, and I can't get the WiFi to work.

wpa_supplicant.conf looks like this:

Code:

country=GBupdate_config=1ctrl_interface=/var/run/wpa_supplicantnetwork={scan_ssid=1ssid="SSID_NAME"psk="PASSWORD"}

Running:

Code:

sudo wpa_supplicant -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf

Gives:

Code:

Successfully initialised wpa_supplicantwlan0: Trying to associate with xx:xx.. (SSID='SSID_NAME;, freq=2442 Mhz)wlan0: CTR_EVENT_ASSOC_REJET bssid=00:00:00:00.. status_code=16

Stuff I've tried:

• Unplugging HDMI
  sudo modprobe brcmfmac roamoff=1 feature_disable=0x82000
  Using NetworkManager
  Using raspi-config to connect

None of the widely cited solutions seem to work

WiFi works flawlessly on Bookworm, so it's not a hardware issue

I'm not sure if this is the same issue but for me wifi was working fine under buster but when I did try to upgrade to bookworm wifi did not work anymore.

Finally disabling "allow known devices/MAC addresses only" in my AVM Fritz!Box 6490 cable router brought back wifi with bookworm. BTW: I can confirm that is working under trixie (which is still in testing) as well.

So the question would be if you are using something similar in your router setup ? I've no clue about other routers but it might be worth a try, right ?

BR
dragonfly7

Statistics: Posted by dragonfly7 — Fri Jul 11, 2025 7:46 am

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