Wifi problems

[andyjohnson]

wlan0: CTRL-EVENT-ASSOC-REJECT bssid=00:00:00:00:00:00 status_code=16
indicates that your wireless interface (wlan0) tried to associate with an access point (AP) but was rejected.
Here's a breakdown of the components:

Meaning of Key Parts
CTRL-EVENT-ASSOC-REJECT: This event is triggered by wpa_supplicant to indicate that an association attempt was rejected.

bssid=00:00:00:00:00:00: The BSSID (MAC address of the AP) is either not reported properly or failed to be resolved.

status_code=16: This is a standardized 802.11 status code.

What is Status Code 16?
Status Code 16 = "Authentication rejected due to timeout waiting for next frame in sequence."

This typically means the AP rejected your authentication request due to timing issues, misconfiguration, or compatibility problems.

Possible Causes
excluded/allready tested (Incorrect Wi-Fi password or security settings.) 
Mismatch between the device’s and the AP’s authentication/encryption methods (e.g., WPA2 vs WPA3).
MAC filtering is enabled on the AP, and your device is not allowed.
(Driver/firmware issue on your Wi-Fi card.)
Access point bug or firmware issue.
HDMI, Usb-Interference
problematic wifi Channel (11/12)

Thanks!

Taking your "possible causes" in order:
- The Pi is using WPA2 and the hub is using "WPA2/WPA3 Personal" (have also tried it with "WPA2 Personal")
- MAC filtering is not being used
- The Devolo hub is running the latest firmware - v6.0.1 (2023-09-06)
- The Pi is running headless, so no hdmi. No usb cables, although it does have a usb thumb drive plugged-in. No plausibly interference-generating devices nearby. Pi is using a Raspberry Pi branded psu.
- Using wifi channel 9 on 2.4 GHz which, according to the wifi analyser app on my phone, is one of the less contended channels in my area. The hub is about 3 metres from the Pi.

I'm starting to think that the hardware or software my just be incompatible with the two wifi devices that I own. If I have time tomorrow I intend to (a) test it with the wifi hotspot on my phone, and (b) boot Raspbian on the Pi and see if it will connect to the Devolo hub. I'll post what I find.

Thanks again,

Andy