OrangePi Zero WLAN0 swaps to WLAN1

mrburns42 · Published in 2017-5-20 22:42:52

Hi,

I am trying to get WIFI working on my OrangePi Zero. Most of the time when it boots, wlan0 gets changed to wlan1 and it makes the wifi connection.  However on some boots this does not occur and then WIFI fails. Any idea why this is happening and how to get the WIFI stable on each boot?  The dmesg line where the swap occurs is :

[ 38.910648] systemd-udevd[119]: renamed network interface wlan0 to wlan1

When it works, ifconfig looks like:

***********************************************************
root@OrangePizero:~# ifconfig
eth0    Link encap:Ethernet  HWaddr 2e:97:b1:cb:11:b0
      inet6 addr: fe80::2c97:b1ff:fecb:11b0/64 Scope

ink
      UP BROADCAST MULTICAST  MTU:1500  Metric:1
      RX packets:0 errors:0 dropped:0 overruns:0 frame:0
      TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1000
      RX bytes:0 (0.0 B)  TX bytes:600 (600.0 B)
      Interrupt:114

lo       Link encap

ocal Loopback
      inet addr:127.0.0.1  Mask:255.0.0.0
      inet6 addr: ::1/128 Scope:Host
      UP LOOPBACK RUNNING  MTU:16436  Metric:1
      RX packets:8 errors:0 dropped:0 overruns:0 frame:0
      TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:0
      RX bytes:1104 (1.0 KiB)  TX bytes:1104 (1.0 KiB)

p2p0    Link encap:Ethernet  HWaddr 2c:97:b1:cb:11:b2
      UP BROADCAST MULTICAST  MTU:1500  Metric:1
      RX packets:0 errors:0 dropped:0 overruns:0 frame:0
      TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1000
      RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

wlan1    Link encap:Ethernet  HWaddr 2c:97:b1:cb:11:b1
      inet addr:192.168.42.14  Bcast:192.168.42.255  Mask:255.255.255.0
      inet6 addr: fe80::2e97:b1ff:fecb:11b1/64 Scope

ink
      UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
      RX packets:39 errors:0 dropped:0 overruns:0 frame:0
      TX packets:45 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1000
      RX bytes:5325 (5.2 KiB)  TX bytes:4898 (4.7 KiB)
******************************************************
When it fails the ifconfig looks like:
******************************************************
root@OrangePizero:~# ifconfig
eth0    Link encap:Ethernet  HWaddr 2e:97:b1:cb:11:b0
      inet6 addr: fe80::2c97:b1ff:fecb:11b0/64 Scope

ink
      UP BROADCAST MULTICAST  MTU:1500  Metric:1
      RX packets:0 errors:0 dropped:0 overruns:0 frame:0
      TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1000
      RX bytes:0 (0.0 B)  TX bytes:572 (572.0 B)
      Interrupt:114

lo       Link encap

ocal Loopback
      inet addr:127.0.0.1  Mask:255.0.0.0
      inet6 addr: ::1/128 Scope:Host
      UP LOOPBACK RUNNING  MTU:16436  Metric:1
      RX packets:0 errors:0 dropped:0 overruns:0 frame:0
      TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:0
      RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

p2p0    Link encap:Ethernet  HWaddr 2c:97:b1:cb:11:b2
      UP BROADCAST MULTICAST  MTU:1500  Metric:1
      RX packets:0 errors:0 dropped:0 overruns:0 frame:0
      TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1000
      RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

wlan0    Link encap:Ethernet  HWaddr 2c:97:b1:cb:11:b1
      UP BROADCAST MULTICAST  MTU:1500  Metric:1
      RX packets:0 errors:0 dropped:0 overruns:0 frame:0
      TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1000
      RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
*******************************************************
My /etc/network/interfaces  is:
*******************************************************
# interfaces(5) file used by ifup(8) and ifdown(8)
# Include files from /etc/network/interfaces.d:
source-directory /etc/network/interfaces.d

# Local loopback
auto lo
iface lo inet loopback

#auto eth0
#iface eth0 inet dhcp

allow-hotplug wlan0
iface wlan0 inet dhcp
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf

allow-hotplug wlan1
iface wlan1 inet dhcp
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
******************************************************
root@OrangePizero:~# uname -a
Linux OrangePizero 3.4.39 #3 SMP PREEMPT Mon Nov 28 10:12:06 CST 2016 armv7l GNU/Linux

igorpec · Published in 2017-5-21 02:45:01

Try this.
https://www.armbian.com/orange-pi-zero/
You won't have such problems, but beware that wireless chip is low quality.

mrburns42 · Published in 2017-5-23 06:15:38

I installed armbian and it always seems to choose wlan0.    Therefore, that port does seem to be a better fit than the Debian one. For Debian I had to do a lot more configuration to get WIFI working as well.
I only want to be an MQTT client with the OrangePi Zero, so I hope the wireless chip is sufficient for that. I guess I will not know until I experiment some more.
Thank you for the pointer to armbian.

AllenChristophe · Published in 2022-1-22 04:04:44

You can try this to lock the onboard wifi to wlan0:
1. Change the value for Predictable Network Names (so you will get wlan0, wlan1, eth0, eth1, etc):

nano /boot/armbianEnv.txt

Copy code

and add:

extraargs=net.ifnames=0

Copy code

2. Assign the Network name to the device driver:

nano /etc/udev/rules.d/72-wlan-geo-dependent.rules

Copy code

and add:

ACTION=="add", SUBSYSTEM=="net", DRIVERS=="xradio_wlan", NAME="wlan0"

Copy code

If that does not work, you can try:

nano /etc/udev/rules.d/70-persistent-net.rules

Copy code

and add:

ACTION=="add", SUBSYSTEM=="net", DRIVERS=="xradio_wlan", NAME="wlan0"

Copy code

Reboot. The Pi Zero onboard wifi should now consistently appear as wlan0.

--Chris

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OrangePi Zero WLAN0 swaps to WLAN1

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