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    Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first

    No wlan0 interface detected

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    buster no wlan0 interf pi 3 retropie 4.6
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    • Reignman
      Reignman last edited by

      Hi All, I have been using Retropie for over 2 years now and I'm having a problem that keeps returning. I have spent houres and houres trying to fix this but limited en no permanent results. I was hoping someone can help me through this.

      I have a Raspberry Pi Model 3. (All info is below)

      I used to have Jessie installed and my wifi connection would suddenly fail. I would get the massage : No wlan0 interface detected. After trying numerous fixes on the net I would get it to work again but now it's down constantly after I upgrade to Retropie 4.6 (buster)

      Tried a fresh install with a new sd card but still I get the same error. You would think It's a hardware issue but when I got this error earlier I got to fix it with a code through the console :
      sudo wpa_supplicant -Dwext -iwlan0 -c/etc/wpa_supplicant/wpa_supplicant.conf
      sudo systemctl enable wpa_supplicant.service

      But this doens't work anymore.

      If I try to connect to the wifi in the config menu I get : No wlan0 interface detected.
      I tried setting the country but then again I get the same message.

      I am currently on the latest release (buster) with Retropie 4.6.

      Pi Model or other hardware: (B, B+, 2 B, 3, X86 PC etc..) : Raspberry Pi 3
      Power Supply used: gooboy Model no. 71889 output : 5V - 2.5A
      RetroPie Version Used (eg 3.6, 3.8.1, 4.1 - do not write latest): 4.6
      Built From: (Pre made SD Image on RetroPie website : retropie-buster-4.6-rpi2_rpi3.img
      USB Devices connected: USB keyboard, USB drive (ROMS and art)
      Controller used: 2x zero delay usb joystick
      Error messages received: No wlan0 interface detected
      Verbose log (if relevant): ?
      Guide used: (Mention if you followed a guide)
      File: (File with issue - with FULL path)
      Emulator: (Name of emulator - if applicable)
      Attachment of config files: (PLEASE USE PASTEBIN.COM FOR LARGE LOGS)
      How to replicate the problem: Trying to connect to a wifi network

      I can't paste any logs cause my Pi will not connect to my network anymore so. If someone can explain how to, that would be nice.

      1 Reply Last reply Reply Quote 0
      • mitu
        mitu Global Moderator last edited by

        Did you set your the Country first ? I think it's required since Raspbian Stretch in order to use the Wi Fi.

        1 Reply Last reply Reply Quote 0
        • Reignman
          Reignman last edited by Reignman

          If I try to set Country I get : No wireless interface found ๐Ÿค”

          markyh444 1 Reply Last reply Reply Quote 0
          • markyh444
            markyh444 @Reignman last edited by

            @Reignman sounds like a hardware issue. Do you get the same behaviour off a standard Raspbian install?

            Reignman 1 Reply Last reply Reply Quote 0
            • Reignman
              Reignman @markyh444 last edited by Reignman

              @markyh444 Yes also of a fresh install. So that's what I'm afraid for that's it's hardware related. Although I don't understand why this was in the past also but back then I got it working again temporary ...

              1 Reply Last reply Reply Quote 0
              • mitu
                mitu Global Moderator last edited by

                Can you run dmesg, taken after a cold boot, and post it on pastebin.com ?

                Reignman 1 Reply Last reply Reply Quote 0
                • Reignman
                  Reignman @mitu last edited by

                  @mitu Yes but how do I save and export this info without network on my pi?

                  mitu 1 Reply Last reply Reply Quote 0
                  • mitu
                    mitu Global Moderator @Reignman last edited by

                    @Reignman Save it on the boot partition.

                    dmesg | sudo tee  /boot/dmesg.txt
                    

                    Then take the sdcard out of the Pi and read the file from your PC.

                    Reignman 3 Replies Last reply Reply Quote 0
                    • Reignman
                      Reignman @mitu last edited by

                      @mitu thank you, I'm gonna try this tomorrow morning. I'm not home now.

                      Posting log asap. ๐Ÿ˜๐Ÿ‘Œ

                      1 Reply Last reply Reply Quote 0
                      • undrwater
                        undrwater last edited by

                        I'm running into the same issue. Here's a dmesg from fresh boot.

                        dmesg

                        BuZz 1 Reply Last reply Reply Quote 0
                        • BuZz
                          BuZz administrators @undrwater last edited by

                          @undrwater Please don't hijack a topic - start a new topic. You're running a Raspberry Pi2 - which doesn't have built in wifi btw. So you need a dongle.

                          undrwater 1 Reply Last reply Reply Quote 0
                          • undrwater
                            undrwater @BuZz last edited by

                            @BuZz

                            Wow. Talk about assumptions. I would have sworn I was using the Pi 3. Thanks for the heads up!

                            Aztechomie64 1 Reply Last reply Reply Quote 0
                            • Reignman
                              Reignman @mitu last edited by Reignman

                              This post is deleted!
                              1 Reply Last reply Reply Quote 0
                              • Reignman
                                Reignman @mitu last edited by

                                @mitu Here is my dmesg

                                Dmesg

                                1 Reply Last reply Reply Quote 0
                                • mitu
                                  mitu Global Moderator last edited by mitu

                                  Doesn't seem to be anything Wi-Fi related (Bluetooth included). Maybe they're blocked ? Can you run

                                  sudo rfkill list all
                                  

                                  and post the output ? Does it detect any Wifi interfaces ?
                                  Did you disable the Wifi/Bt via config.txt on your Pi ?

                                  Reignman 1 Reply Last reply Reply Quote 0
                                  • Reignman
                                    Reignman @mitu last edited by

                                    @mitu I get no output from chat command. Havent changed anything in config.txt

                                    With iwconfig I get :

                                    lo no wireless extensions.

                                    Enxb827ebb5a2ad no wireless extensions.

                                    1 Reply Last reply Reply Quote 0
                                    • Aztechomie64
                                      Aztechomie64 @undrwater last edited by

                                      @undrwater Something is going on i need some type of help anyone.
                                      I di all the steps to install retropie and then i downloaded all roms to usb plugged it in the raspberry pi 3 and when i go to restart emulation it tells me that โ€œif this is the first time rebooting then i got something wrong?
                                      I deleted all and re installed all same steps same outcome.
                                      Right now at this moment i tried to change some audio it let me but as it went back to the main screen it froze ?
                                      Any answers thank y

                                      mitu 1 Reply Last reply Reply Quote -1
                                      • mitu
                                        mitu Global Moderator @Aztechomie64 last edited by

                                        @Aztechomie64 Please open a separate topic and add the info asked in https://retropie.org.uk/forum/topic/3/read-this-first.

                                        1 Reply Last reply Reply Quote 0
                                        • Reignman
                                          Reignman last edited by

                                          @mitu Any ideas what I could do? Could it ba a hardware failure?

                                          1 Reply Last reply Reply Quote 0
                                          • mitu
                                            mitu Global Moderator last edited by

                                            It's most likely a hardware failure.
                                            Just to be sure there's nothing disabled, post your config.txt.

                                            1 Reply Last reply Reply Quote 0
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