I have been trying to get this to work to no avail

I created the folder 'video' in 'public.html', tried everything(several different settings) to password protect it.

Enter the address in my browser, and I get a sign in window. I enter the user name I put on file and the password I entered and it just brings up an another sign in screen. I am uploading the file as I type this. I leave for camping in 12 hours. file may be up there by then. But how does he get it?

I clicked the little box at top of protect folder screen for a lock. set user 'A' up with password "abc" I unlocked the little box next time through still to no avail. I have deleted and added this same user several time, still not able to get in.
I used the same "A" and "abc" every time
what am I doing wrong?