Hi again, experts.
Please advice how fix it.
WiFi gone.
I used ethernet cable to reinstall Debian i386 32b Buster. Now WiFi won't turn on. In Xfce desktop "Advanced Network Manager" shows the WiFi provider, but "Save" button's grey passive; not possible to turn on.
Installed B.a.t.m.a.n another management tool; hope it helps.
BR,
Gunnar