WiFi works when eth0 plugged in fails after disconect

[Kevin Bosworth]

I am having a network problem that I can not figure out. First I had to roll back the kernel to version 5.x to even get wifi to work. Since then I have tried all sorts of things. No matter what I do, when I unplug the eth0 the wifi goes away as well. Here is some stuff that might help.

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| |  | | (_| | | | | \__ \ (_| | | | |__| |____) |
|_|  |_|\__,_|_|_| |_|___/\__,_|_|_|\____/|_____/

Version 1.1.1, based on Armbian 23.02.2 Bullseye
Running on OPi 3 LTS with Linux 5.15.93-sunxi64

System load:   41%              Up time:       3 min
Memory usage:  15% of 1.94G     IP:            192.168.1.161 192.168.1.160
CPU temp:      43°C             Usage of /:    84% of 7.0G

[ Kernel and firmware upgrades disabled: armbian-config ]
Last check: 2023-09-16 20:53

Last login: Sat Sep 16 20:50:31 2023 from 192.168.1.65
pi@OrangePI3:~$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 02:07:75:b2:b2:2d brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.161/24 brd 192.168.1.255 scope global eth0
       valid_lft forever preferred_lft forever
3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether a0:ab:d6:c3:a7:66 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.160/24 brd 192.168.1.255 scope global noprefixroute wlan0
       valid_lft forever preferred_lft forever

 

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# armbian-config created
source /etc/network/interfaces.d/*

# Local loopback
auto lo
iface lo inet loopback

# Interface eth0
allow-hotplug eth0
iface eth0 inet static            
    address 192.168.1.161
    netmask 255.255.255.0
    gateway 192.168.1.1
    dns-nameservers 192.168.1.1 8.8.8.8

 

I don't know what else to try. Thanks in advance.

[Gunjan Gupta]

Could you please share the logs? Pull your ethernet out while wifi is working. Once the wifi stops working, plug the ethernet back in and run armbianmonitor -u to upload the logs. Then share the URL here. 

 

I have already created a PR to fix the wifi, it should get pulled in a few days. Then probably you can get the kernel from beta.armbian.com repository. But still I will try this out tomorrow on the newer kernel to see to make sure it doesn't have similar issue.