I know it’s not common but I’ve kept a client-isolated open wifi hotspot on my property for a long time. You never know when someone might be in the neighborhood and need a connection!
So far, a single client has connected in 4 years and I can’t remember if that was me or not.
I used to do that but now I have put a password on my guest wifi with a QR code for easy typing (which I still have not printed; I should do that one of these days).
frizlab|11 months ago