BPI-Wifi6 no connection after setting LAN to DHCP Client

[tsj_net (Net User)]

I am trying to setup a BPI-Wifi6. As I have already a home network, I want it to just be a DHCP client to my main network.

I have configured several other OpenWRT devices and they work perfectly when I do this. However, on this device, it works fine as long as it provides it’s own IP addresses, but as soon as i change it to DHCP client it doesn’t work anymore. Any ideas why?

Below are a few screenshots of my configuration (starting from the default BPI-Wifi6 config):

When set like this, it works fine (original config):

But when I edit to change for “DHCP client” in LAN it doesn’t anymore:

One additional interesting point, is that if I revert back to “Static address” it does not fix the issue. Even after a reboot. The only way I found to make it work again is to reload my previous backup of the settings.

Do I need to edit anything else in an other location?

[frank-w]

As wan is also dhcp client,i guess lan gets same subnet and so 2 interfaces have same subnet configured leading to invalid routing information

[tsj_net (Net User)]

Sorry for the late reply, I’ve had an urgency to deal with and was not available for a few days.

@frank-w your were right. I have now removed WAN and all the ethernet ports are working fine and are on the right subnet:

In Interfaces/Device I also ticked the WAN port:

Everything seems to work perfectly well now on the Ethernet ports. Thanks a lot for your help.

[tsj_net (Net User)]

Actually, I still have one issue with Wifi.

I have 2 other OpenWRT boxes in the house. One as the main router and the second as a Dumb AP. The 2 boxes are OpenWRT One and are running the latest version:

LuCI Master (25.120.73261~0899031)i) / OpenWrt SNAPSHOT (r29064-696ad7b1aa) )

The Wireless network is configured to be able to use 802.11r Fast Transition the Mobility Domain is the same for all boxes. I have made sure the configs are the same by checking in /etc/config/wireless via ssh

It works very well in between the 2 other boxes but not on the BPI-Wifi6 were devices just can’t connect to the wireless network. However I can connect to the wifi without any issue when I deactivate 802.11r Fast Transition

Do you know if they are known issues when running on an older version such as the BPI-Wifi6 which is currently running:

openwrt-22.03 branch (git-24.208.65546-18f3914) / TGP 3.1.0 r19685-512e76967f

Or any other idea?

[tsj_net (Net User)]

As an extra test, I wondered if it was by updating the packages that I broke something. So I did a router reset, and just reloaded the configuration but this time without updating the packages. The BPI-WIFI6 is now running:

Powered by LuCI (240105.15618) / TGP 3.1.0 r19685-512e76967f

and the wifi still does not work.