We have customers using our product outside of the US and require support of channel 12 & 13.
We are using a TL-WN725N (r8188eu) Wi-Fi dongle with our RPi4.
It appears that the dongle does not see APs on channels 12 and 13.
We tried to set the county in config.json to GB and it appears to affect the RPi built-in wifi but not the dongle. It’s also weird as the ‘iw’ utility does not seem to be able to access the dongle.
Note that in any other respect the dongle works great - it has much better and more stable performance than the RPi4 Wi-Fi.
Any tips or ideas on how to allow the dongle (r8188eu) scan the entire 2.4Ghz band?