Balena Cloud - device connects by ethernet, not by wifi

[RavyDaveyGravy]

@chrisys

Are you able to check from the router/access point side if these devices are connected? If you take the MAC address from the balenaCloud dashboard, you should be able to find a status page that shows all the connected devices to determine if a WiFi connection is actually being established or not.

I have checked the wifi status page. No device with the MAC address from the balenaCloud dashboard is visible.

@chrisys

Could you also confirm if all of your devices are Pi 3B, or are the balena-print and PiHole ones something different? It would also be worth determining if they are actually Pi 3B or 3B+ devices. I think it’s printed on the board but IIRC the 3B+ devices have a silver chip whereas the 3B are black - just an easy way to tell at a glance.

I can confirm that all devices are a Raspberry Pi 3B (Raspberry Pi 3 Model B V1.2)

@chrisys

If it’s not connected to the WiFi, maybe the channel 12 thing is also an indicator. It is possible to set the country code on balena devices (see here ) but again it’s strange that it would be required on these devices when you have others working fine.

Thank you. I shutdown the device (connected to it via ethernet), and put the SD card in my Mac. I have added “country”:“GB” to the config.json using Atom. Saved, and ejected the SD card.
On restarting the Pi it now connects to wifi and it is both discovered and online in the balenaCloud dashboard, and I can see its MAC address from my router’s side.

So, thank you very much indeed for your help and very clear instructions. I very much appreciate it.