Like many, I am having huge issues getting logged into my site. The login is stuck in a redirect loop. If I disable all my plugins, the login goes nowhere, it just reloads the page. I have a single install, and have tried everything recommended, including; changing plug-in folder name, switching themes, re-uploading wordpress, fixing permissions on database, repairing database, 'downgrading', deleting .htaccess, updating permalinks, and probably a few other things.
Everything was peachy before this upgrade, now I am stuck in redirect hell. Any help would be appreciated!