No Wlan0 interface detected

Seannyboy08

It says wlan0 interface doesn't support scanning ?

Sean

mitu

@seannyboy08 Are you sure that your WiFi is now working (i.e. you've set the WiFi country) ? What's the output of the following command:

iwconfig wlan0

Seannyboy08

@mitu

When I type in iwconfig this is the outcome -

lo no wireless extensions.

enxb827ebf18d83 no wireless extensions.

Do I need to get a new raspberry pi and replace the microprocessor ?

Sean

Seannyboy08

@mitu

And if I type iwconfig wlan0 this is the outcome -

wlan0 no such device

Sean

mitu

When I type in iwconfig this is the outcome - [..]

iwconfig doesn't list your WiFi interface - it may not be enabled. Did you use raspi-config to set the WiFi country, as advised ?

The interface name for the wired interface is also not something that's present on a RetroPie or Raspberry Pi OS image - what image did you use to install the system ?

Do I need to get a new raspberry pi and replace the microprocessor ?

I don't think so.

Seannyboy08

@mitu

When I run raspi-config and go to localization settings then WLAN Country it says this -

no wireless interface found
and then on the next page after I press ok it says this -

There was an error running option L4 WLAN Country
and then the only option again is to press OK ?

Sean

Seannyboy08

@sleve_mcdichael

When I run raspi-config and go to localization settings then WLAN Country it says this -

no wireless interface found
and then on the next page after I press ok it says this -

There was an error running option L4 WLAN Country
and then the only option again is to press OK ?

Sean

mitu

@seannyboy08 said in No Wlan0 interface detected:

When I run raspi-config and go to localization settings then WLAN Country it says this -
no wireless interface found
and then on the next page after I press ok it says this -

What image did you use to install the system ?

Seannyboy08

@mitu

Literally the image file you asked me to download from scratch but if you think its the image file got currupted during the writing process i'll try again or is there another image file you recommend ?

This was your words -

We don't support 3rd party images - use the image from retropie.org.uk/download and we can help

Sean

Thorr69

@seannyboy08 I think he's more interested in making sure you grabbed the right image for your hardware. You should have downloaded the rpi2/3 image (assuming this is still the Pi 3b in your post above).

mitu

@seannyboy08 said in No Wlan0 interface detected:

Literally the image file you asked me to download from scratch but if you think its the image file got currupted during the writing process i'll try again or is there another image file you recommend ?

In this case I don't understand why the WiFi is completely disabled or not present. Can you post the contents of the config.txt configuration file from the sdcard, should be accessible if you insert the sdcard into your PC from the boot partition that shows up.

Seannyboy08

@mitu

Here is the config file from the sd card, hope this helps -

# For more options and information see
# http://rpf.io/configtxt
# Some settings may impact device functionality. See link above for details

# uncomment if you get no picture on HDMI for a default "safe" mode
#hdmi_safe=1

# uncomment this if your display has a black border of unused pixels visible
# and your display can output without overscan
#disable_overscan=1

# uncomment the following to adjust overscan. Use positive numbers if console
# goes off screen, and negative if there is too much border
#overscan_left=16
#overscan_right=16
#overscan_top=16
#overscan_bottom=16

# uncomment to force a console size. By default it will be display's size minus
# overscan.
#framebuffer_width=1280
#framebuffer_height=720

# uncomment if hdmi display is not detected and composite is being output
#hdmi_force_hotplug=1

# uncomment to force a specific HDMI mode (this will force VGA)
#hdmi_group=1
#hdmi_mode=1

# uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes
#hdmi_drive=2

# uncomment to increase signal to HDMI, if you have interference, blanking, or
# no display
#config_hdmi_boost=4

# uncomment for composite PAL
#sdtv_mode=2

#uncomment to overclock the arm. 700 MHz is the default.
#arm_freq=800

# Uncomment some or all of these to enable the optional hardware interfaces
#dtparam=i2c_arm=on
#dtparam=i2s=on
#dtparam=spi=on

# Uncomment this to enable infrared communication.
#dtoverlay=gpio-ir,gpio_pin=17
#dtoverlay=gpio-ir-tx,gpio_pin=18

# Additional overlays and parameters are documented /boot/overlays/README

# Enable audio (loads snd_bcm2835)
dtparam=audio=on

[pi4]
# Enable DRM VC4 V3D driver on top of the dispmanx display stack
dtoverlay=vc4-fkms-v3d
max_framebuffers=2

[all]
#dtoverlay=vc4-fkms-v3d
gpu_mem_256=128
gpu_mem_512=256
gpu_mem_1024=256
overscan_scale=1

Sean

mitu

@seannyboy08 Looks fine, WiFi is not disabled here.

Seannyboy08

@mitu
Any ideas as to why i can't connect to the wifi ?

Sean

Seannyboy08

@mitu
Is it out of range possible ?

Sean

mitu

@seannyboy08 I don't think being out of range is the issue here - your WiFI interface is not working on the Pi, before even trying out to connect to an access point (which may or may be not out of range).

Can you run the following commands and post the output:

iw reg get
rfkill list all
systemctl status wpa_supplicant

Seannyboy08

@mitu

answer to the f4 command prompts -

iw get reg
global
country 00: DFS-UNSET
(2402 - 2472 @ 40), (N/A , 20), (N/A)
(2457 - 2482 @ 20), (N/A , 20), (N/A), AUTO-BW, PASSIVE-SCAN
(2474 - 2494 @ 20), (N/A , 20), (N/A), NO-OFDM, PASSIVE-SCAN
(5170 - 5250 @ 80), (N/A , 20), (N/A), AUTO-BW, PASSIVE-SCAN
(5250 - 5330 @ 80), (N/A , 20), (0 ms), DFS, AUTO-BW, PASSIVE-SCAN
(5490 - 5730 @ 160), (N/A , 20), (0 ms), DFS, PASSIVE-SCAN
(5735 - 5835 @ 80), (N/A , 20), (N/A), PASSIVE-SCAN
(57240 - 63720 @ 2160), (N/A , 0), (N/A)

rfkill list all

0: hci0 : Bluetooth
soft blocked: no
hard blocked : no

systemct1 status wpa_supplicant
wpa_supplicant.service - WPA supplicant
Loaded : loaded (/lib/systemd/system/wpa_supplicant.service: enabled; vendor preset: enabled)
Active: active ( running) since Thu 2020-08-20 14:17:05 BST: 3Mmin 23s ago
Main PID : 427 (wpa_supplicant)
Tasks: 1 (limit: 1635)
CGroup: /system.slice/wpa_supplicant.service
I___ 427 / sbin/wpa_supplicant -u -s -0 / run/wpa_supplicant

Aug 20 14:17:05 retropie system[1]: StartingWPA supplicant...
Aug 20 14:17:05 retropie wpa_supplicant[427]: Successfully initialized wpa_supplicant
Aug 20 14:17:05 retropie system[1] : Started WPA supplicant.

Sean

mitu

@seannyboy08 said in No Wlan0 interface detected:

answer to the f4 command prompts -
iw get reg
global
country 00: DFS-UNSET

You haven't set the WiFi country, as indicated in one of the first replies to your post. Please do so before configuring WiFi - https://www.raspberrypi.org/documentation/configuration/wireless/wireless-cli.md.