Re: Connection to a WPA2 Wi-Fi router fails

[Waldemar Brodkorb <wbx@openadk.org>]

Hi Sven,
Dembianny Sven (BSH GDE-EDSD7) wrote,

> Hi Waldemar,
> > 
> > Hi Sven,
> > Dembianny Sven (BSH GDE-EDSD7) wrote,
> > 
> > > Hi Michael,
> > >
> > > I don't think so, e.g., if AP does not support SAE but repeater does, roaming will fail.
> > > This will also break certification tests.
> > >
> > > @ François do you have more info about your setup, e.g. MFP setting on AP/wpa_supplicant
> > config/WPA-PSK-SHA256 instead of WPA-PSK?
> > 
> > Sorry for the late reply. Francois seems not to answered your question and I see no fixes for this
> > problem in GIT master either.
> > 
> > My AP is a standard Vodafone AP with WPA2.
> > How can I give you better information about the details of this AP?
> What model is being used?

Vodafone Wifi 6.
It is this one:
https://www.vodafone.de/downloadarea/CGA6444VF-DMS3-CTC-25-593_v2.0_German_public_20210511.pdf

> It is possible that MFP is additionally configured as optional. Could you please check the AP settings or the beacon frames?

It seems not.
See:
sudo iw dev wlan0 scan | grep -A20 -B2 'Vodafone-C30C'
	last seen: 84 ms ago
	Information elements from Probe Response frame:
	SSID: Vodafone-C30C
	Supported rates: 1.0* 2.0* 5.5* 11.0* 18.0 24.0 36.0 54.0
	DS Parameter set: channel 11
	Country: DE	Environment: Indoor/Outdoor
		Channels [1 - 13] @ 20 dBm
	TPC report: TX power: 18 dBm
	ERP: Barker_Preamble_Mode
	Extended supported rates: 6.0 9.0 12.0 48.0
	RSN:	 * Version: 1
		 * Group cipher: CCMP
		 * Pairwise ciphers: CCMP
		 * Authentication suites: PSK
		 * Capabilities: 16-PTKSA-RC 1-GTKSA-RC (0x000c)
	BSS Load:
		 * station count: 2
		 * channel utilisation: 31/255
		 * available admission capacity: 0 [*32us]
	RM enabled capabilities:
		Capabilities: 0x72 0x00 0x00 0x00 0x00
			Neighbor Report
			Beacon Passive Measurement
--
	signal: -72.00 dBm
	last seen: 3208 ms ago
	SSID: Vodafone-C30C
	Supported rates: 6.0* 9.0 12.0* 18.0 24.0* 36.0 48.0 54.0
	TIM: DTIM Count 0 DTIM Period 1 Bitmap Control 0x0 Bitmap[0] 0x0
	Country: DE	Environment: Indoor/Outdoor
		Channels [36 - 64] @ 23 dBm
		Channels [100 - 140] @ 30 dBm
	Power constraint: 0 dB
	TPC report: TX power: 23 dBm
	RSN:	 * Version: 1
		 * Group cipher: CCMP
		 * Pairwise ciphers: CCMP
		 * Authentication suites: PSK
		 * Capabilities: 16-PTKSA-RC 1-GTKSA-RC (0x000c)
	BSS Load:
		 * station count: 6
		 * channel utilisation: 6/255
		 * available admission capacity: 0 [*32us]
	RM enabled capabilities:
		Capabilities: 0x72 0x00 0x00 0x00 0x00
			Neighbor Report
			Beacon Passive Measurement

 
> Also, what firmware version is running on the Raspberry Pi 4? The firmware files should be located under:
> /lib/firmware/

That is the dmesg output after loading the Wifi driver in Buildroot:
[  249.369934] brcmfmac: F1 signature read @0x18000000=0x15264345
[  249.373427] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
[  249.382449] usbcore: registered new interface driver brcmfmac
[  249.618723] brcmfmac: brcmf_c_process_txcap_blob: no txcap_blob available (err=-2)
[  249.626771] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/6 wl0: Aug 29 2023 01:47:08 version 7.45.265 (28bca26 CY) FWID 01-b677b91b

But at the moment I am fighting with connmanctl, it seems I cannot
scan wifi anymore:
# connmanctl scan wifi
Error /net/connman/technology/wifi: Not supported
# connmanctl enable wifi
wifi is already enabled
# connmanctl scan wifi
Error /net/connman/technology/wifi: Not supported
# connmanctl technologies
/net/connman/technology/ethernet
  Name = Wired
  Type = ethernet
  Powered = True
  Connected = False
  Tethering = False
  TetheringFreq = 2412
/net/connman/technology/wifi
  Name = WiFi
  Type = wifi
  Powered = True
  Connected = False
  Tethering = False
  TetheringFreq = 2412

I can scan wifi with iw on the RPI4.

best regards
 Waldemar