this is not really needed/correct. the advise/requirement is to set the
OTP once for the built in brcm chipset via raspiOS... it has no relation
to the mediatek dongle, if it's been done once... then that is all
users are advised to do
IMHO, there are two or more issues here;
- the
/etc/config/wirelessin general - how the OS handles wifi interfaces (specifically teardown and bring up) on this board1
- r18161 issues if any that may be complicating the current setup
- (edit: build specific firmware blobs which we are now excluding to simplify troubleshooting)
My advice is to use 21.02 or builds prior to r17699 AND either reboot or use;
wifi down; /etc/init.d/wpad stop; sleep 20; /etc/init.d/wpad start; sleep 11; wifi up
when restarting wireless (making any changes to wireless settings)...
We will then be much closer to having something known that we can troubleshoot...
The first order of affairs would likely to be;
- disabling of the external wifi config
- fine tuning the settings and ensuring proper function
- bringing back the external card... possibly as wlan1 and taking it from there
1
i'm particularly interested in assisting / troubleshooting / isolating any anomalies on this point... i've seen odd things regarding wlan iface bring up / teardown from before 21.02... and the points you make about having two interfaces may have some interaction / validity here...
I have a spare external usb wlan interface so should may be able to duplicate / assist in troubleshooting once we are on a stabler release