Wifi interference in harbor only

[jamos.tan@gmail.com]

Unfortunately, only the RPI4 supports 5G wifi on the board. You could plug in a 5g dongle.

Thanks, I'll try the pi4 when I have time to build it in.
I've got the dongle working on the 3b+, however I cannot get it to function as an AP. When I choose "use as internet sharing device" strange things happen:

- Choice: wlan0 (internal)
No AP is started anymore, both wlan0 and wlan1 will connect to my router
- Choice: wlan1 (external) 
AP is created, wlan0 still is the router internet connection and wlan9 is created as the AP.
wlan1 is still just a default connection that can connect to a router.

No matter what choice I make, wlan1 (external dongle) will not create an AP. Any ideas? I'd rather not do any manual configuration in hostapd files.