wifi.tcz
wireless_tools.tcz
libiw.tcz
wireless-4.9.22-piCore.tcz
wpa_supplicant.tcz
libnl.tcz
openssl.tcz
ca-certificates.tcz
readline.tcz
ncurses.tcz
I'll give it ago...
Add all these extensions plus the appropriate firmware-???.tcz to optional directory.
Add wifi.tcz and appropriate firmware-???.tcz to onboot.lst
Add "wifi.sh -a &" to /opt/bootlocal.sh
Do a backup "filetool.sh -b" to save above.
Reboot
"tce-status -i" will give a list of installed extensions.
Edit /home/tc/wifi.db
Do a backup "filetool.sh -b"
Shutdown
Install USB wifi adaptor.
Power up
I haven't tested this.
If this hasn't helped, you might need to post your procedure in detail, I am sure someone will pick the missing step.
regards
Greg
[EDIT]: Fixed typo, changed wifi -a & to wifi.sh -a &. Rich