OK, in my particular case I have discovered that multi-site was causing this. I set the following to FALSE in wp-config:
define(‘MULTISITE’, false);
define(‘SUBDOMAIN_INSTALL’, false);
… and that has gotten everything back up and running.
Now I just need to figure out how to get multi-site working in the future… I think I have some subdomain redirect problem.
-James
i have tried editing my .htaccess file, double checking the URL settings and Home settings in the DB, reset the password, etc.
Wondering if this could be caused by some subdomain redirect issue?
I tried every potentially relevant step from here: http://codex.wordpress.org/Login_Trouble
… including resetting passwords, checking all configs, removing all plugins and themes, but no luck.
halp!
i am also having this issue, just started happening recently and i cant figure out what i changed…