Update page (update-core.php) & Plugins page (plugins.php) revert to homepage

Question

I am notified in my admin view of my Wordpress site that I have 1 available update for both the site and plugins (in my Network Admin Dashboard there '1' in red circles next to 'Plugins' and 'Updates')... But when I try to go to both the updates page & Plugins page, the homepage appears? The URL at that point is http:///wp-admin/network/update-core.php/, and http:///wp-admin/plugins.php/ respectively.

I can therefore never arrive at the true updates page, and cannot update my Wordpress or plugins. How can I get the updates or Plugins page to appear?

Answer 1

I've since found my own solution: Delete the .htaccess file in the Wordpress root directory. I've written more details in a post on my blog at cellepo.com.