Yes, I changed the configuration option back. The very last line in wp-config.php reads:
I am having to switch from a situation of trying to get WordPress to do SSL for any administrative functions (including logins) to not doing this.
This is pretty urgent. I have had to move the installation to another server. And I am unable to get https working. I can view pages on the site fine just as long as I don't try to log in or post.
The new setup is intended to use nginx on a Linode as a proxy to my old laptop, which has had the database all along and runs Apache. My attempts to get WordPress running under nginx failed miserably. There is a lot of bad advice out there on the web and a lot of inapplicable advice on what to do about a 502 Bad Gateway error when using nginx as a proxy. (Error logs indicate a problem with SSL handshaking.)
But since I've got OpenVPN--and that works fine, without any of the wonkiness associated with Apache SSL configuration--I have no real need for WordPress to serve SSL. The nginx frontend seems to handle that very well, even getting the right SSL certificates (which I could never persuade Apache to reliably do). But WordPress keeps on forcing SSL. And I need it to stop. Desperately.
What can I do?