frozenboy11
Posts: 8
Joined: Sat Oct 24, 2015 5:36 am

No wifi Interface Found

Fri Jan 18, 2019 10:08 am

HI i am using raspberry Pi Zero w camera, i am unable to connect to wifi for some reason, thanks in advance^_^

when i run

Code: Select all

sudo nano /etc/network/interfaces

Code: Select all

 #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

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

allow-hotplug wlan1
iface wlan1 inet manual
    wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
when i run

Code: Select all

sudo nano /etc/wpa_supplicant/wpa_supplicant.conf

Code: Select all

country=SG
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update config=1

network={
        ssid="_____________"
        psk="_____________"
        key_mgmt=WPA-PSK
}

drgeoff
Posts: 8985
Joined: Wed Jan 25, 2012 6:39 pm

Re: No wifi Interface Found

Fri Jan 18, 2019 10:59 am

Are you sure you have a ZeroW and not a Zero? Click on the pictures at https://www.raspberrypi.org/products/ and check against your RPi.

frozenboy11
Posts: 8
Joined: Sat Oct 24, 2015 5:36 am

Re: No wifi Interface Found

Fri Jan 18, 2019 1:17 pm

opps its raspberry pi zero W

frozenboy11
Posts: 8
Joined: Sat Oct 24, 2015 5:36 am

Re: No wifi Interface Found

Sat Jan 19, 2019 6:48 pm

In additional, when i run

Code: Select all

pi@raspberrypi:~ $ sudo iwlist wlan0 scan

Code: Select all

Scan completed :
          Cell 01 - Address: F4:17:B8:01:5F:1E
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=47/70  Signal level=-63 dBm  
                    Encryption key:on
                    ESSID:"AirTies4920_9SK3"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
                              24 Mb/s; 36 Mb/s; 54 Mb/s
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
                    Mode:Master
                    Extra:tsf=0000000000000000
                    Extra: Last beacon: 60ms ago
                    IE: Unknown: 001041697254696573343932305F39534B33
                    IE: Unknown: 010882848B962430486C
                    IE: Unknown: 030101
                    IE: Unknown: 050400010000
                    IE: Unknown: 0706534720010D16
                    IE: Unknown: 2A0100
                    IE: Unknown: 2F0100
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 32040C121860
                    IE: Unknown: 2D1ABC1917FFFF000000000000000000000000000000000000000000
                    IE: Unknown: 3D1601080000000000000000000000000000000000000000
                    IE: Unknown: 4A0E14000A002C01C800140005001900
                    IE: Unknown: 7F080500000000000040
                    IE: Unknown: DD570050F204104A00011010440001021047001013DBFF01B0847EDA3FA8363CA9BE3439103C0001011049000600372A00012010490022007FC5100018665618569F33DE5A4A2717D843DC2567303030303030303130000101
                    IE: Unknown: DD090010180200000C0000
                    IE: Unknown: DD180050F2020101040003A4000027A4000042435E0062322F00
                    IE: Unknown: 46057208010000
          Cell 02 - Address: 00:26:75:87:DB:AC
                    Channel:3
                    Frequency:2.422 GHz (Channel 3)
                    Quality=48/70  Signal level=-62 dBm  
                    Encryption key:on
                    ESSID:"WK Personal Wifi "
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
                              24 Mb/s; 36 Mb/s; 54 Mb/s
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
                    Mode:Master
                    Extra:tsf=0000000000000000
                    Extra: Last beacon: 60ms ago
                    IE: Unknown: 0011574B20506572736F6E616C205769666920
                    IE: Unknown: 010882848B962430486C
                    IE: Unknown: 030103
                    IE: Unknown: 2A0100
                    IE: Unknown: 2F0100
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 32040C121860
                    IE: Unknown: 0B0501001F0000
                    IE: Unknown: 2D1A3C181BFFFF000000000000000000000000000000000000000000
                    IE: Unknown: 3D1603001500000000000000000000000000000000000000
                    IE: Unknown: 7F03000008
                    IE: Unknown: DD800050F204104A0001101044000102103B00010310470010E64259BD30D2128EE6664C84C212D64C1021000842726F6164636F6D1023000842726F6164636F6D1024000631323334353610420004313233341054000800060050F20400011011000A42726F6164636F6D415010080002200C103C0001011049000600372A000120
                    IE: Unknown: DD090010180201000C0000
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
          Cell 03 - Address: E0:8E:3C:20:5F:81
                    Channel:3
                    Frequency:2.422 GHz (Channel 3)
                    Quality=31/70  Signal level=-79 dBm  
                    Encryption key:on
                    ESSID:"SINGTEL-5F80"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
                              24 Mb/s; 36 Mb/s; 54 Mb/s
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
                    Mode:Master
                    Extra:tsf=0000000000000000
                    Extra: Last beacon: 60ms ago
                    IE: Unknown: 000C53494E4754454C2D35463830
                    IE: Unknown: 010882848B962430486C
                    IE: Unknown: 030103
                    IE: Unknown: 050400010020
                    IE: Unknown: 2A0104
                    IE: Unknown: 2F0104
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 32040C121860
                    IE: Unknown: 0B050400DA0000
                    IE: Unknown: 2D1A3C181BFFFF000000000000000000000000000000000000000000
                    IE: Unknown: 3D1603000400000000000000000000000000000000000000
                    IE: Unknown: 7F03000008
                    IE: Unknown: DD180050F204104A00011010440001021049000600372A000120
                    IE: Unknown: DD090010180204000C0000
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
Attachments
No Wireless interface.png
No Wireless interface.png (119.45 KiB) Viewed 307 times

frozenboy11
Posts: 8
Joined: Sat Oct 24, 2015 5:36 am

Re: No wifi Interface Found

Mon Jan 21, 2019 8:31 pm

Hello all this is important to me, any help is appreciated :)

ShiftPlusOne
Raspberry Pi Engineer & Forum Moderator
Raspberry Pi Engineer & Forum Moderator
Posts: 5445
Joined: Fri Jul 29, 2011 5:36 pm
Location: The unfashionable end of the western spiral arm of the Galaxy

Re: No wifi Interface Found

Tue Jan 22, 2019 8:32 am

The desktop applet is designed to use dhcpcd. You're using ifupdown.

User avatar
rpdom
Posts: 13400
Joined: Sun May 06, 2012 5:17 am
Location: Chelmsford, Essex, UK

Re: No wifi Interface Found

Tue Jan 22, 2019 2:07 pm

Are you using the default "pi" user? If not, did you add the new user to the same groups as "pi". I believe the netdev group is essential for the network config to work.

frozenboy11
Posts: 8
Joined: Sat Oct 24, 2015 5:36 am

Re: No wifi Interface Found

Wed Jan 23, 2019 6:12 am

ShiftPlusOne wrote:
Tue Jan 22, 2019 8:32 am
The desktop applet is designed to use dhcpcd. You're using ifupdown.
what do u mean? hmm..?

frozenboy11
Posts: 8
Joined: Sat Oct 24, 2015 5:36 am

Re: No wifi Interface Found

Wed Jan 23, 2019 6:13 am

rpdom wrote:
Tue Jan 22, 2019 2:07 pm
Are you using the default "pi" user? If not, did you add the new user to the same groups as "pi". I believe the netdev group is essential for the network config to work.
hi there, i am using the default "pi" user, this is the first time i encounter this problem.

ShiftPlusOne
Raspberry Pi Engineer & Forum Moderator
Raspberry Pi Engineer & Forum Moderator
Posts: 5445
Joined: Fri Jul 29, 2011 5:36 pm
Location: The unfashionable end of the western spiral arm of the Galaxy

Re: No wifi Interface Found

Wed Jan 23, 2019 9:08 am

The /etc/network/interfaces file you're using is not what we ship by default. I don't know if it's the cause of your problem, but at the very least it makes me suspicious.

Here's what it's meant to look like:

Code: Select all

# 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
Yours contains lines which start wpa_supplicant, which is normally the job of dhcpcd (the network manager we actually use). Given that you have those changes there, I suspect there could also be other changes. It would be good to check the latest, clean, unmodified stretch image and see if you still get the same problem. It should just work out of the box.

Return to “Troubleshooting”