@chinraam said in Nginx "404 Not Found" Error after POST action to "$PORTAL_ACTION%2quot;:

Can you please guide or let me know how to overcome?

I'm not modifying or editing any of the pfSense PHP files. So I have no issues neither errors.

I can't do "self registration" as I'm not allowed (and not want to, neither maintain) ask for any private info like phone numbers or email addresses.