I installed Better WP Security last week, implementing the first 19 of 21 recommendations in one sitting. I now cannot edit the content of my site. When I press the "Update" button to save changes to an edited page, I get a 404 error and the content remains unchanged.
In trying to figure out this issue, I disabled features on the "Hide" tab, and I set WordPress' permalinks back to the default. That didn't help, but I now cannot reset permalinks to the non-default setting I'd used.
Any suggestions for things to try before I uninstall the plug-in and restore my site from backup?