RPI 3 B+ No wireless interfaces found
Hi!
When I boot to desktop I see error that "No wireless interfaces found" on a RPI 3 B+, and of course there's no network connection.
The same SD card works flawlessly when inserted to older RPI 3 B (without plus). What's wrong? How to fix this problem?
I tried rpi-update, upgrade, dist-upgrade. No luck... any ideas how to fix this problem?
Thanks in advance.
Regards,
Marcin
When I boot to desktop I see error that "No wireless interfaces found" on a RPI 3 B+, and of course there's no network connection.
The same SD card works flawlessly when inserted to older RPI 3 B (without plus). What's wrong? How to fix this problem?
I tried rpi-update, upgrade, dist-upgrade. No luck... any ideas how to fix this problem?
Thanks in advance.
Regards,
Marcin
Re: RPI 3 B+ No wireless interfaces found
Hi.
You need to run
then select localisation options
then change wifi country.
you may also need to unblock the wifi using this command
you can also see if the wifi and Bluetooth are blocked by running
You need to run
Code: Select all
sudo raspi-config
then change wifi country.
you may also need to unblock the wifi using this command
Code: Select all
sudo rfkill unbolck all
you can also see if the wifi and Bluetooth are blocked by running
Code: Select all
sudo rfkill list all
We want information… information… information........................no information no help
The use of crystal balls & mind reading are not supported
The use of crystal balls & mind reading are not supported
Re: RPI 3 B+ No wireless interfaces found
Thank you for quick answer. I did this already.
The output of tells me
There's no information about wifi. If I run iwconfig I also do not see any wlan0 interfaces, telling me only that lo and eth0 have
Am I missing something? The same SD card when I put to old Raspberry Pi 3 B v1.2 (not B+) works perfectly fine and wifi is started.
I think it is worth noting that the system is via NOOBs and it was upgraded from older version to the B+.
The output of
Code: Select all
sudo rfkill list all
Code: Select all
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
Code: Select all
lo no wireless extensions.
eth0 no wireless extensions.
I think it is worth noting that the system is via NOOBs and it was upgraded from older version to the B+.
- HawaiianPi
- Posts: 7196
- Joined: Mon Apr 08, 2013 4:53 am
- Location: Aloha, Oregon USA
Re: RPI 3 B+ No wireless interfaces found
What OS? If it's Raspbian Jessie you should start over with the latest version of Raspbian Stretch 2018-04-18 or newer. Jessie predates the 3B+ and is not compatible (loading the possibly unstable testing firmware with rpi-update will get Jessie booting, but won't fix other problems).
My mind is like a browser. 27 tabs are open, 9 aren't responding,
lots of pop-ups, and where is that annoying music coming from?
lots of pop-ups, and where is that annoying music coming from?
Re: RPI 3 B+ No wireless interfaces found
In case it helps someone else, adding this into network interface config was the fix for me (after much time spent). NB: whilst the WIFI is connected, the desktop UI still shows "No interfaces found".
I'd already upgrade the OS & configured my interface etc:
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pi@msp-raspberrypi:~ $ sudo cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
# Please note that this file is written to be used with dhcpcd
# For static IP, consult /etc/dhcpcd.conf and 'man dhcpcd.conf'
# Include files from /etc/network/interfaces.d:
source-directory /etc/network/interfaces.d
# MSP HACK
allow-hotplug wlan0
auto wlan0
iface wlan0 inet dhcp
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
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pi@msp-raspberrypi:~ $ uname -a
Linux msp-raspberrypi 4.14.34-v7+ #1110 SMP Mon Apr 16 15:18:51 BST 2018 armv7l GNU/Linux
pi@msp-raspberrypi:~ $ sudo cat /etc/os-release
PRETTY_NAME="Raspbian GNU/Linux 9 (stretch)"
NAME="Raspbian GNU/Linux"
VERSION_ID="9"
VERSION="9 (stretch)"
ID=raspbian
ID_LIKE=debian
HOME_URL="http://www.raspbian.org/"
SUPPORT_URL="http://www.raspbian.org/RaspbianForums"
BUG_REPORT_URL="http://www.raspbian.org/RaspbianBugs"
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pi@msp-raspberrypi:~ $ sudo cat /etc/wpa_supplicant/wpa_supplicant.conf
country=GB
network={
ssid="XXXX"
psk="XXXX"
key_mgmt=WPA-PSK
}
Re: RPI 3 B+ No wireless interfaces found
Try this it worked for me
dtoverlay=pi3-enable-wifi

dtoverlay=pi3-enable-wifi

Re: RPI 3 B+ No wireless interfaces found
I'm having the same problem on a RPI 3B and on a Zero W. If I try using raspi-config it's saying it can't communicate with WPA_Supplicant. This is on a clean download using Etcher.
Re: RPI 3 B+ No wireless interfaces found
Same here. After doing a system upgrade recently I lost all network connectivity - wireless and wired. journalctrl shows that the udev worker for all network interfaces fails with a segfault. I suspect a broken FW or driver, I think both got updated. Trying a rollback now but that's not so easy since I have no network left...
Re: RPI 3 B+ No wireless interfaces found
Hours later I gave up; rolling back with an apt which is not online is too much trouble. . My pi is almost stock anyway, so I did a fresh install of the latest distro. Problem solved, both interfaces are back up again. Unfortunately this is not the first time that apt-get upgrade bricked my distro. Fedora-user here — is this known of debian?
Re: RPI 3 B+ No wireless interfaces found
Last update also blew my wifi and bluetooth. I duno what to do
- HawaiianPi
- Posts: 7196
- Joined: Mon Apr 08, 2013 4:53 am
- Location: Aloha, Oregon USA
Re: RPI 3 B+ No wireless interfaces found
Really odd that you (and others) are having this problem. I'm SSH connected to both a Pi 3B and a 3B+ that have been recently updated (last night), and both are connected to my wireless network. The Pi 3B is USB booted from an SSD running Raspbian Stretch Lite. The Pi 3B+ is booting from a SanDisk Ultra A1 micro SD card (32GB) running Raspbian Stretch Desktop. The uname -r command on either system returns 4.14.70-v7+ for the kernel version.
The Pi 3B+ has been running for awhile now, and has been through several update/upgrade cycles, with the only problem being the shutdown kernel panic due to the recent (and buggy) 20180910 firmware release, which has since been fixed, and did not cause connection issues with my wireless network. The symptom of the bug was that shutdown would fail and end in a kernel panic if Bluetooth was turned off, but there were no problems booting and connecting to WiFi.
What are you using for a power supply?
My mind is like a browser. 27 tabs are open, 9 aren't responding,
lots of pop-ups, and where is that annoying music coming from?
lots of pop-ups, and where is that annoying music coming from?
Re: RPI 3 B+ No wireless interfaces found
Is there any ways of getting the Wifi working in Jessie? I am using a custom build image (built by someone else) for my solar inverter which still runs on Jessie, and the wifi doesn't work after running apt-get update; apt-get upgrade.HawaiianPi wrote: ↑Wed May 16, 2018 7:50 pmWhat OS? If it's Raspbian Jessie you should start over with the latest version of Raspbian Stretch 2018-04-18 or newer. Jessie predates the 3B+ and is not compatible (loading the possibly unstable testing firmware with rpi-update will get Jessie booting, but won't fix other problems).
I'm using a Raspberry Pi 3 Model B with 7" LCD Touch screen and Mini USB Wireless Keyboard
Re: RPI 3 B+ No wireless interfaces found
I updated from Jessie to Stretch and I'm bricked out from the Internet too. This is ridiculous.
I get "No wireless interfaces found" ... "Could not communicate with wpa_supplicant".
I can't even get into the Networking GUI.
I get "No wireless interfaces found" ... "Could not communicate with wpa_supplicant".
I can't even get into the Networking GUI.
Re: RPI 3 B+ No wireless interfaces found
It was never recommend to upgrade from Jessie to Stretch because a working system was never guaranteed after the upgrade, people found there was mixed success.
The recommend way to upgrade to Stretch has always been to flash a new image to an SD card.
We want information… information… information........................no information no help
The use of crystal balls & mind reading are not supported
The use of crystal balls & mind reading are not supported
Re: RPI 3 B+ No wireless interfaces found
I understand that you had trouble with wifi, though one further question about your issues.
Why did you not have network? Wired ethernet should still have worked without problem, what else was wrong?
Why did you not have network? Wired ethernet should still have worked without problem, what else was wrong?
RPi = The best ARM based RISC OS computer around
More than 95% of posts made from RISC OS on RPi 1B/1B+ computers.
More than 95% of posts made from RISC OS on RPi 1B/1B+ computers.
Re: RPI 3 B+ No wireless interfaces found
I *just* ran to this very same problem myself.
I was fiddling around with connman, which caused some havoc. After 20 mins of crazily whaking my keyboard, I ended up in a situation that wlan0 could not connect to an AP. whoops.
I decided to enter X, only to see that dreaded "No wireless interfaces found" message, and got those same wpa_supplicant error messages while running sudo raspi-config from a terminal.
To fix this, I did the following:
1. I checked my /etc/wpa_supplicant/wpa_supplicant.conf file, and removed all but one wifi network (examples of wpa_supplicant.conf can be found above in this thread).
2. I ran manually, from the CLI: "sudo wpa_supplicant -Dwext -iwlan0 -c/etc/wpa_supplicant/wpa_supplicant.conf" – and it werks! It was even displaying the available networks on top right corner of the screen. Yay! But, it kept the console session reserved... ok, so it's a service. Onwards..
3. enable service: "sudo systemctl enable wpa_supplicant.service"
4. "sudo reboot"
5. boom. instant profit.
PS. I also upgraded from Jessie to Stretch without creating a new SD card image. Oh, and connman does not work on Raspbian without first disabling some other services managing the wifi.
I was fiddling around with connman, which caused some havoc. After 20 mins of crazily whaking my keyboard, I ended up in a situation that wlan0 could not connect to an AP. whoops.
I decided to enter X, only to see that dreaded "No wireless interfaces found" message, and got those same wpa_supplicant error messages while running sudo raspi-config from a terminal.
To fix this, I did the following:
1. I checked my /etc/wpa_supplicant/wpa_supplicant.conf file, and removed all but one wifi network (examples of wpa_supplicant.conf can be found above in this thread).
2. I ran manually, from the CLI: "sudo wpa_supplicant -Dwext -iwlan0 -c/etc/wpa_supplicant/wpa_supplicant.conf" – and it werks! It was even displaying the available networks on top right corner of the screen. Yay! But, it kept the console session reserved... ok, so it's a service. Onwards..
3. enable service: "sudo systemctl enable wpa_supplicant.service"
4. "sudo reboot"
5. boom. instant profit.
PS. I also upgraded from Jessie to Stretch without creating a new SD card image. Oh, and connman does not work on Raspbian without first disabling some other services managing the wifi.
Re: RPI 3 B+ No wireless interfaces found
Thanks for the tips androidi. I had the very same problem (it just cropped up a week or so ago) but with your suggestion, all is working again.
Re: RPI 3 B+ No wireless interfaces found
For mine, I had to use the old interfaces file, the new one was empty.
the contents of interfaces should appear similar to this:
source-directory /etc/network/interfaces.d
auto lo
iface lo inet loopback
iface eth0 inet manual
allow-hotplug wlan0
iface wlan0 inet manual
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
allow-hotplug wlan1
iface wlan1 inet manual
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
Code: Select all
sudo mv /etc/network/interfaces /etc/network/interfaces.old
sudo mv /etc/network/interfaces.dpkg-old /etc/network/interfaces
sudo reboot
source-directory /etc/network/interfaces.d
auto lo
iface lo inet loopback
iface eth0 inet manual
allow-hotplug wlan0
iface wlan0 inet manual
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
allow-hotplug wlan1
iface wlan1 inet manual
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
Re: RPI 3 B+ No wireless interfaces found
Hi,
This doesn't answer the specific question, but it may help someone. My Pi3 (not 3b+) lost it's wlan interface last night after a dist-upgrade. I tracked the problem down the the wifi firmware. The error in dmesg was:
My fix was to move all the files out of /lib/firmware/brcm and replace them with the ones from another Pi3 that was working.
Not sure what caused this, or if this is the best way to fix it, but it's got me working again
This doesn't answer the specific question, but it may help someone. My Pi3 (not 3b+) lost it's wlan interface last night after a dist-upgrade. I tracked the problem down the the wifi firmware. The error in dmesg was:
Code: Select all
[ 3.971211] brcmfmac mmc1:0001:1: Direct firmware load for brcm/brcmfmac43430-sdio.txt failed with error -2
Not sure what caused this, or if this is the best way to fix it, but it's got me working again

Re: RPI 3 B+ No wireless interfaces found
Looking at this again, the brcmfmac43430-sdio.txt file doesn't exist in the 'bad' copy of the brcm folder I made before replacing it. It doesn't seem to exist in any packages either, according to an apt-file search. It's .bin counterpart exists in firmware-brcm80211, but not the .txtiainfm wrote: ↑Wed Feb 06, 2019 6:10 pmHi,
This doesn't answer the specific question, but it may help someone. My Pi3 (not 3b+) lost it's wlan interface last night after a dist-upgrade. I tracked the problem down the the wifi firmware. The error in dmesg was:
My fix was to move all the files out of /lib/firmware/brcm and replace them with the ones from another Pi3 that was working.Code: Select all
[ 3.971211] brcmfmac mmc1:0001:1: Direct firmware load for brcm/brcmfmac43430-sdio.txt failed with error -2
Not sure what caused this, or if this is the best way to fix it, but it's got me working again![]()
Re: RPI 3 B+ No wireless interfaces found
Hi there,
I have hit the Wi-fi problem big time today. I had initially setup fine at first wifi was good for a few weeks.
Today I installed a new router ready for an upgrade & I changed the SSID and passwords.
I tried the config.txt files nothing, after playing for hours various things, I came to some conclusions on this issue.
NOTE I realised the main symptom was a complete lack of IP setting at all (run ifconfig and check wlan0)
I can only see the MAC hardware address for wlan0.
From other suggestions, this procedure seemed to work for me, [with the latest build Octoprint / Octopi with a RPI 3B]
I tried using 'sudo raspi-config' interface and change the locale to US and reconfigure.
Then run network configure the SSID and WPA password, save & exit to command.
run 'sudo reboot'
all works OK
I hope this helps.
Steve
I have hit the Wi-fi problem big time today. I had initially setup fine at first wifi was good for a few weeks.
Today I installed a new router ready for an upgrade & I changed the SSID and passwords.
I tried the config.txt files nothing, after playing for hours various things, I came to some conclusions on this issue.
NOTE I realised the main symptom was a complete lack of IP setting at all (run ifconfig and check wlan0)
I can only see the MAC hardware address for wlan0.
From other suggestions, this procedure seemed to work for me, [with the latest build Octoprint / Octopi with a RPI 3B]
I tried using 'sudo raspi-config' interface and change the locale to US and reconfigure.
Then run network configure the SSID and WPA password, save & exit to command.
run 'sudo reboot'
all works OK
I hope this helps.
Steve
Re: RPI 3 B+ No wireless interfaces found
This worked for me too! After a recent dist upgrade and reboot, there was no wifi hardware being reported. None of the other fixes did anything, but typing the above dtoverlay line into a terminal fixed the problem instantly.
Re: RPI 3 B+ No wireless interfaces found
The update wiped out the Wifi operation, was working fine till it got to the update... nothing seems to fix it... tried all the excuses for it not working,, waste of time.. It use to work great, no longer.. 

- HawaiianPi
- Posts: 7196
- Joined: Mon Apr 08, 2013 4:53 am
- Location: Aloha, Oregon USA
Re: RPI 3 B+ No wireless interfaces found
I recently ran an update/full-upgrade on my 4B2 with Raspbian Buster Lite & 4B4 with Raspbian Buster with desktop, and both are working fine (connected to my WiFi and accessible via SSH/VNC).
So whatever your problem is, it's likely on your end. You need to give us more details if you want help.
My mind is like a browser. 27 tabs are open, 9 aren't responding,
lots of pop-ups, and where is that annoying music coming from?
lots of pop-ups, and where is that annoying music coming from?