Plugin blocks legit user from access

While trying to access /wp-admin my developer was greeted with a 404 Not Found page. He was able to login successfully initially, but then immediately was booted out. I disabled the plugin, removed IP addresses denied in .htaccess, and he was able to access the WP dashboard again.

If you’d like more info to help diagnose this issue let me know and I’ll try to provide it.

I’ve been pleased with this plugin for years but just noticed it hasn’t been updated in a while. Falsely flagging users trying to access the dashboard is one thing – but I certainly hope that normal website viewers haven’t been given 404’s too.