plugin.php won't load

I started having this problem yesterday. First, the dashboard would not load at all. When I went to the login page, it had a connection reset error.

I eventually got the dashboard back up and running by renaming the plugins folder, but when I added it back, even empty, I could log in to the admin panel and access everything but I continue to get the connection error messages whenever I try to access the plugins page (plugin.php).

All of my plugins are deactivated now, and I can’t reactivate any of them.

I tried upgrading, then downgrading WordPress, no solution.

Any more ideas?