So, if I head over to my site's login page, and attempt to log in, nothing happens. The page appears to refresh, but doesn't proceed. If I attempt to reset the password, it tells me to enter a valid email (having entered a valid one). Double checked the users in the database, even added a new user into the database and tried logging in with said new user, no luck. Change the password of an existing user in the database, no luck.
I have no idea how to proceed forward or why this is happening. I've double-checked wp-config.php, all of those settings are correct and haven't changed. I reinstalled WordPress completely. I even nuked the database and attempted to restart the install (with the idea that I'd just bring some of my old database back in), but it wouldn't recognize my email address at the install screen!
What the hell is going on?!