[iThemes Security (formerly Better WP Security)] Can't login to Dashboard

I’m running iThemes Security and have been using the Hide Dashboard feature for a long time with great success.

A few days ago my host auto updated me to WordPress 3.9.2. Now when I try and access my Dashboard using the rewritten address, I am just redirected back to my home page. If I try and access the original http://domain.com/wp-admin address, I receive a 404 error.

Any help would be great. I have tried hashing out the relevant lines in my .htaccess file but that hasn’t helped.