@parry
Normally, I don't enter "admin" neither my password, the browser (Firefox 135.0.1) handles all that ^^
But, when I was entering a random password, after 2 retires, I was locked out.
I totally forgot that I whitelisted my LAN IPs (LAN and OpenVPN access) ..... but only IPv4.
Or, IPv4 is rarely used on my LANs these days. Its all IPv6 now.
So I got myself also locked out, like you.
There is no 'you are locked out' message on the screen, because the browser just can't connect to the pfSense LAN IP anymore ... no more replies .... it was hitting a wall, no like talking into a black hole.
I 'corrected' the issue :
c41b739a-eee6-4195-a819-b83d4997e9d5-image.png
2a01:dead:beef:a600::/56 are all 256 of my ISP IPv6 prefixes. This will do for the moment, although with that setting I totally disabled all login protection ....
edit : btw : not really a pfSense thing. Every network device with some security in mind does the same thing. Not the stuff you buy at Wallmart, of course.
Try entering 10 times the wrong ID code of your iPhone after power on. You'll see what happens .... (read about this before trying or you will have huge regrets !!)