stromberg
Posts: 4
Joined: Thu Jan 17, 2019 12:49 am

Pi Zero W built in wifi doesn't work , wifi dongle does

Thu Jan 17, 2019 1:17 am

I have been searching around for a good time trying to solve this issue but seem to find different issues around this one but not exactly what I am experiencing.

I have a Raspberry Pi Zero W v1.1

I have installed the 2018-11-13-raspbian-stretch-lite version.

My wpa_supplicant.conf file has correct information

I am able to connect to my wifi with a WIFI dongle attached to the Pi Zero W, however with just power plugged into the Pi Zero W it can not connect to the wifi.

I am able to SSH into my Pi Zero W from the wifi dongle.

I am able to SSH into my Pi Zero W over USB.

When I run ifconfig while SSH over USB I only get lo and usb0.

When I run ifconfig while SSH over wifi dongle I only get lo and wlan0 but no other wlan.

Like I said I have been trying to find the right search term and topic to look for and I've been at a loss. I've tried just about everything it feels like but then again there are some things I've probably missed.

I tried to lay out what I have and what I have done but honestly I am at a stand still at this point...

Any help is greatly appreciated.

User avatar
davidcoton
Posts: 3934
Joined: Mon Sep 01, 2014 2:37 pm
Location: Cambridge, UK

Re: Pi Zero W built in wifi doesn't work , wifi dongle does

Thu Jan 17, 2019 10:56 am

stromberg wrote:My wpa_supplicant.conf file has correct information
You may be right, but post it here (edit out the passphrase) just in case.

Also, what does

Code: Select all

cat /proc/device-tree/model
return? (Some Pis have excaped production with the wrong hardware version programmed.)
Signature retired

stromberg
Posts: 4
Joined: Thu Jan 17, 2019 12:49 am

Re: Pi Zero W built in wifi doesn't work , wifi dongle does

Thu Jan 17, 2019 12:04 pm

davidcoton wrote:
Thu Jan 17, 2019 10:56 am
stromberg wrote:My wpa_supplicant.conf file has correct information
You may be right, but post it here (edit out the passphrase) just in case.

I am able to connect to wifi through my dongle on the pi zero w, so I didn't post it

however it is :

Code: Select all

country=US
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
network={
	ssid="SSID"
	psk="PASSWORD"
	key_mgmt=WPA-PSK
}
Also, what does

Code: Select all

cat /proc/device-tree/model
return? (Some Pis have excaped production with the wrong hardware version programmed.)
cat /proc/device-tree/model returns:

Code: Select all

[email protected]:~ $ cat /proc/device-tree/model
Raspberry Pi Zero W Rev 1.1

DirkS
Posts: 9872
Joined: Tue Jun 19, 2012 9:46 pm
Location: Essex, UK

Re: Pi Zero W built in wifi doesn't work , wifi dongle does

Thu Jan 17, 2019 12:19 pm

stromberg wrote:
Thu Jan 17, 2019 12:04 pm
davidcoton wrote:
Thu Jan 17, 2019 10:56 am
Also, what does

Code: Select all

cat /proc/device-tree/model
return? (Some Pis have excaped production with the wrong hardware version programmed.)
cat /proc/device-tree/model returns:

Code: Select all

[email protected]:~ $ cat /proc/device-tree/model
Raspberry Pi Zero W Rev 1.1
And your wpa_supplicant (as @davidcoton requested)?
And while you're at it you could also post your /boot/config.txt

User avatar
davidcoton
Posts: 3934
Joined: Mon Sep 01, 2014 2:37 pm
Location: Cambridge, UK

Re: Pi Zero W built in wifi doesn't work , wifi dongle does

Thu Jan 17, 2019 1:21 pm

DirkS wrote:
Thu Jan 17, 2019 12:19 pm
And your wpa_supplicant (as @davidcoton requested)?
It's embedded within the quote of my post :evil:
However it looks correct, unless the SSID is hidden by the router.
Signature retired

klricks
Posts: 6496
Joined: Sat Jan 12, 2013 3:01 am
Location: Grants Pass, OR, USA
Contact: Website

Re: Pi Zero W built in wifi doesn't work , wifi dongle does

Thu Jan 17, 2019 1:47 pm

stromberg wrote:
Thu Jan 17, 2019 1:17 am
..
I am able to connect to my wifi with a WIFI dongle attached to the Pi Zero W, however with just power plugged into the Pi Zero W it can not connect to the wifi.
Is your WIFI 2.4GHz? The built in WIFI of the RPi Zero W does not do 5GHz.
Unless specified otherwise my response is based on the latest and fully updated Raspbian Buster w/ Desktop OS.

stromberg
Posts: 4
Joined: Thu Jan 17, 2019 12:49 am

Re: Pi Zero W built in wifi doesn't work , wifi dongle does

Thu Jan 17, 2019 6:08 pm

Ultimately what I'm trying to get to is I believe the wifi hardware built in to the pi zero itself does not work.

I have connected to both 2.4 and 5 through my dongle, however with just the pi zero plugged into power there is no wifi. Even over USB to be able to SSH in there is no wlan0 on the Device list.

I have tried to edit the wpa_supplicant to connect both 2.4 and 5 without the dongle but no luck

I can connect to my wifi in my home, as long as I have the dongle, but not with built in wifi.

mattmiller
Posts: 2079
Joined: Thu Feb 05, 2015 11:25 pm

Re: Pi Zero W built in wifi doesn't work , wifi dongle does

Thu Jan 17, 2019 9:59 pm

Unless you buy or borrow another PiZeroW,, I don't think you'll be able to find out whether its hardware fault with your one or an incompatibility with your router.

Might be worth taking it around a friends/relations house and seeing if it doesn't work there either

stromberg
Posts: 4
Joined: Thu Jan 17, 2019 12:49 am

Re: Pi Zero W built in wifi doesn't work , wifi dongle does

Thu Jan 17, 2019 11:31 pm

I decided to just order another one and I'll go from there.

At least then I'll have something to compare and contrast off of

Thanks for the help

Return to “Troubleshooting”