Upon my initial upgrade to 1.9.2, only my home page would pull up. Every other page would pull up an error 404 (and not the kind that pulls up the custom error 404 page in wordpress).
It didn't matter which settings I had checked in the plugin settings this time.
In order to fix it, I had to change my site's general settings. I set the website url back to http:// (from https://).
Your instructions say to make it https://. Perhaps that changed in this version, or is this a bug?
1.9.2 fixed a wp-admin/ redirect bug when logging in, though!